Trade up toStealth
Trade in your old dumbbells for a discount on a Stealth Black Edition or Chrome Edition adjustable dumbbell set. Quotes within 24 working hours.
How it works
Tap each step for more detail.
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Trade-up applies to dumbbells only. We accept most major brands — Bowflex, PowerBlock, Muscle IQ, Primal Strength, generic spinlock or fixed sets, unbranded gym kit. Other equipment (kettlebells, plates, racks, benches) isn't part of this programme.
Reasons people use it:
- Outgrown the weight — your current set tops out below where you train now.
- Worn or damaged — broken plates, sticking dials, missing pegs. Still works in your favour for the offer.
- Wrong type for how you train — e.g. spinlocks holding you back from quick weight changes.
- Just want better kit — Stealth-grade build vs entry-level competitors.
The discount can only be redeemed on the Stealth Black Edition or Chrome Edition adjustable dumbbell set.
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The accuracy of your description is what makes our quote accurate. We're looking for:
- Brand & model — e.g. "Bowflex SelectTech 552" rather than "adjustable dumbbells".
- Weight range — the spread (e.g. 2–24 kg) and any selectable increments.
- Condition — pick the closest match below; we'd rather you under-rate than over-rate.
- Photos — front, side, close-up of any wear. Good lighting beats a polished angle.
Be honest about marks, dents, missing pegs, or partial sets — it always works in your favour. We've never reduced an offer for someone who flagged an issue up front.
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Your quote arrives by email within 24 working hours (Mon–Fri, 9 am–5 pm UK). It's a fixed amount, valid for 7 days to accept. Once you accept, you have a further 7 days to get the items to us.
The quote includes:
- The trade-up amount you'll save on a Stealth Black Edition or Chrome Edition adjustable dumbbell set.
- Recommended send-back method based on your postcode.
If we can't make an offer (set is too far gone or a brand we don't accept), we'll tell you politely the same day.
Check your spam folder if you don't see it. Add info@assassingoods.com to your safe senders list.
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Three options. Use the calculator below to compare costs:
- Drop off — bring it to our facility yourself (free). Address provided in your quote email.
- Paid collection — UK mainland only. We arrange a courier; the fee is deducted from your trade-up amount, so there's nothing for you to pay separately.
- Self-ship — you arrange the courier yourself. Any service with tracking works — Parcelforce, DPD, Evri.
Packing tips: original box if you've still got it, otherwise a sturdy double-walled box, plenty of padding, and tape every seam. Dumbbells are heavy and unforgiving on cheap packaging.
Include a slip of paper with your name + the email address you used to submit so we can match it to your quote on arrival.
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Once your set lands with us, we inspect it within 2 working days:
- Matches your description — your discount code is issued by email. Code is valid for 30 days from the issue date.
- Condition materially different — we'll email you a revised offer with photos showing why. You can accept the new amount or decline.
If you decline a revised offer, we send your set back to you. Return shipping is at your cost. We won't keep, sell, or modify your set without your consent.
Inspections happen Monday to Friday. Sets arriving on a Saturday are processed first thing Monday.
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Your one-time discount code arrives by email as soon as we've finished the inspection. The code is valid only on the Stealth Black Edition or Chrome Edition adjustable dumbbell set — both available in stock and pre-order.
To use it:
- Add your Black Edition or Chrome Edition set to your cart.
- Open the cart drawer (the bag icon in the header).
- Tap "Discount code" and paste the code.
- The saving applies to your subtotal automatically.
The code is valid for 30 days from issue and is single-use, so make sure you've added everything you want before checking out.
Standard delivery times apply once you place the order — same as any other Stealth purchase.
Trade up, don't list
What you give up by selling on eBay or Marketplace vs. what you get by trading in with us.
eBay / Marketplace
- Lose ~13% to listing + payment fees
- Weeks of messages, no-shows, lowball offers
- Dispute and return risk after delivery
- Pack and post yourself, your time, your cost
Stealth Trade-Up
- Keep 100% of your trade-in value
- Fixed quote in 24 working hours
- Set discount, single-use, no risk
- Drop off, paid collection, or self-ship
Photo tipsClear photos get accurate quotes. Aim for these. Show photo tips Hide
Do Full set in frame
Show every dumbbell, every weight plate, and any stand or case so we can see exactly what you've got.
Do Close-up of any wear
If there are dents, scuffs, missing pegs, or sticking dials — photograph them up close so the quote isn't a surprise.
Don't Blurry or shaky
We can't rate condition from a soft photo. Hold steady or rest your phone on something flat.
Don't Dark, cluttered shots
Daylight beats lamp light. Move the set onto a plain floor if possible — less guesswork on our side.
Example trade-up valuesIndicative only — your actual quote depends on the photos and condition. Show examples Hide
| Product | Condition | Saving | Upgraded to |
|---|---|---|---|
 Stealth Chrome Edition 23.5kg
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Good | £225 offsaved on a new Stealth dumbbell | 41.5kg Stealth Chrome Edition |
 Muscle IQ 40kg
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Good | £220 offsaved on a new Stealth dumbbell | 41.5kg Stealth Black Edition |
 Bowflex SelectTech 552
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Like new | £200 offsaved on a new Stealth dumbbell | 23.kg Stealth Chrome Edition |
 Spinlock 30kg set
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Fair | £40 offsaved on a new Stealth dumbbell | 23.5kg Stealth Black Edition |
Submit your trade-up
Required fields are marked with *.
Request received
Thanks — we'll review your details and email you a quote within 24 working hours.
Estimate return shipping
Use this if you're planning to ship the set yourself or want to compare against our paid collection. Indicative only.
This needs a direct quote.
Your postcode or one of the boxes is outside our standard return range. Submit your trade-up below and we'll send a custom shipping quote with your offer.
Indicative only — actual courier price varies by service, postcode, and dimensions. We'll confirm the exact figure with your quote.
FAQ
Common questions about how the trade-up works.
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We accept dumbbells only. Most major brands — Bowflex, PowerBlock, Muscle IQ, Primal Strength, generic spinlock or fixed sets, unbranded gym kit. Other equipment (kettlebells, plates, racks, benches) isn't part of the trade-up programme.
The discount can only be redeemed on the Stealth adjustable dumbbells — Black Edition or Chrome Edition. Codes won't apply to other Stealth products (stands, accessories, etc.).
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Still send it in. Missing pegs, sticking dials, broken plates, general wear — none of these disqualify you. We factor condition into the quote, which is why honest photos and notes matter. As long as the set is identifiable and largely intact, we'll quote on it.
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Once your set arrives and matches the description, we issue a one-time discount code by email. The code applies only to the Stealth Black Edition or Chrome Edition adjustable dumbbell set at checkout.
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Quotes are valid for 7 days from the date we email them. That's your window to accept. Once you accept, you have a further 7 days to get the items to us. After we receive them, we inspect within 2 working days and email your code. The code itself is then valid for 30 days from issue.
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If condition or weight is materially different from your description, we'll email a revised offer before processing. You can accept it or have the items returned to you at your cost.
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You choose the send-back method when you accept your quote:
- Drop off — if you're in range of our Cumbria collection point, drop off free of charge.
- Paid collection — we book a courier on your behalf. The collection fee is quoted alongside your trade-up offer and can be paid separately or deducted from the discount code value.
- Self-ship — you pick your own courier. We recommend tracked + insured for anything over £100 of trade-up value.
The right option depends on your postcode and the size/weight of the set. We'll recommend one in your quote.
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Yes — each set gets its own quote and its own discount code. Note codes are single-use and only apply to a Black Edition or Chrome Edition adjustable dumbbell set at checkout, so this works best for people upgrading more than one home gym or planning multiple purchases over time.
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Realistic end-to-end window from submission to spent code:
- Quote — within 24 working hours of your submission.
- Accept — you have 7 days from the quote email to accept.
- Send-back — once you accept, 7 days to get the items to us (1–5 working days with most couriers).
- Inspection — within 2 working days of arrival.
- Code emailed — same day as inspection. Valid for 30 days.
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Currently UK only. EU expansion coming soon.
Terms & conditions
The fine print on quotes, sending back, and discount codes.
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Quotes are valid for 7 days from the date we email them — this is your window to accept. After 7 days, an unaccepted quote is void.
If your items have already arrived and the quote expires before you respond, we'll treat that as a decline — see Revised offers and declines below for what happens next (the consequence depends on the send-back method you chose).
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Once you accept a quote, you have 7 days to get the items to us (whether by drop-off, our paid-collection service, or self-ship). If items haven't arrived within that window, the quote may be re-evaluated or withdrawn at our discretion.
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We inspect every set within 2 working days of arrival. If condition and contents match your description, we issue your one-time discount code by email the same day we complete inspection.
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If the actual condition or weight is materially different from your description, we'll email a revised offer before processing. You can accept the revised offer, or decline it.
If you decline a revised offer:
- If you sent the items via drop-off or self-ship: we'll return them to you at your cost.
- If you used our paid-collection service (we booked the courier on your behalf): we reserve the right to either (a) bill you for the round-trip courier cost (outbound collection plus return shipping), or (b) retain the items in lieu of those costs — at our sole discretion.
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Discount codes are valid for 30 days from the date we email them. Use the code within that window at checkout — codes that expire without use cannot be reinstated.
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Discount codes are single-use, customer-bound, and apply only to the Stealth Black Edition or Chrome Edition adjustable dumbbell set at checkout, subject to stock availability. Codes can't be combined with other offers, gift cards, or store credit, and can't be redeemed for cash.
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We accept dumbbells only — most major brands and generic sets. Other equipment (kettlebells, plates, racks, benches) isn't part of the trade-up programme. We reserve the right to refuse trade-ins on items that aren't dumbbells or that aren't in reasonable trade-in condition.
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Ownership of the traded-in items transfers to Assassin Goods Ltd at the point we issue your discount code. We may then resell, refurbish, recycle, or otherwise dispose of the items at our sole discretion.
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Items remain at the customer's risk in transit, regardless of who arranges the courier. This includes our paid-collection service — where we book the courier on your behalf, the items are still travelling at your risk. Any damage or loss in transit is not Assassin Goods' liability. Disputes about transit damage are between the carrier and the customer. We recommend tracked and insured shipping for all send-backs.
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Items must be sent clean. We reserve the right to refuse items that arrive in unsanitary, damp, mouldy, or otherwise unhygienic condition. Refused items will be returned to the customer at their cost.
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Trade-up discount codes are issued against the original submitter's email account and are non-transferable. Codes cannot be sold, gifted, or shared with another customer.
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These terms are governed by the laws of England and Wales. Any dispute arising from or connected to a trade-up submission is subject to the exclusive jurisdiction of the English courts.
