Straight answers

What exactly are these?

Die-cut 0.75" × 1.77" security seals printed in full color on holographic vinyl, made for the trading-card world: wrap a graded slab's seam, seal a box flap, close a break stack, number an edition. Each seal carries your brand and its own serial number.

Are they really tamper-proof?

No sticker is tamper-proof, and we won't tell you otherwise. Ours are tamper-revealing: the holographic vinyl distorts and shows damage when peeled, so opening is obvious — and because every seal is uniquely numbered, swapping one for a fresh sticker is obvious too. That combination, not magic adhesive, is the security.

Does this protect me from return fraud?

It gives you evidence, which is the thing sellers usually lack. The common scam on eBay, Whatnot and TCGplayer is a buyer receiving a high-value card and returning a swapped, damaged or counterfeit one under a “not as described” case.

Seal the slab before it ships and photograph the seal. If what comes back has no seal, a broken seal, or a different serial, it is demonstrably not the item you sent — and you can show that rather than argue it.

To be straight with you: marketplaces decide their own cases and no sticker forces an outcome. What changes is that you arrive at the dispute with specific, dated photographic proof instead of a description from memory.

How does the serial numbering work?

Builder packs use random serials: every seal gets its own code like K7D-4QM9 (add an optional prefix — GS-K7D4QM). Random means unguessable: nobody can predict your next number, order the same one, or run a sticker printer up a sequence. No two seals we print carry the same serial.

Serialized runs are the numbered-edition product: you pick a prefix and a starting number and we count up with no gaps — GS-001 → GS-500. Reorders can continue where your last run ended.

What does the QR code do?

It's optional, and it points at your own link — your shop, your break page, your socials. The same link prints on every seal; the serial printed beside it is what makes each seal unique. Links are capped at 60 characters because longer codes won't scan reliably at seal size — use a short link.

Is there an online verification database?

Not today. The security is physical and in your hands: a numbered tamper-revealing seal on the item plus your own photos and records. The QR points wherever you choose — we don't host a lookup page, so your evidence never depends on our website being up. If we add an optional hosted registry later, existing seals will be able to opt in.

Is this only for sellers?

No — collectors and card-show vendors use the same seals inward. Serialize your own inventory: every slab, team bag, and storage box gets its own number, so you can count a case at a glance, track what's in storage, and know instantly if something you loaned, traded, or displayed comes back as a different copy.

Does the SLABVANE.COM watermark print on the seal?

Yes. The ghosted diagonal watermark you see in the preview is part of the printed security foil on every seal — along with the serial microtext and the engraved rosette. It is not a preview overlay and it is never removed. It's one more thing a counterfeit seal has to get exactly right.

Can I use my own logo?

Yes — designs with a logo slot take a transparent-background PNG. JPEGs and white-background images print an ugly solid box over the holo shine, so the builder only accepts PNG.

What's the material?

Silver holographic vinyl with permanent adhesive, printed with commercial resin-ink presses. Unprinted areas show the rainbow holo shine — the designs use that as a feature. QR-heavy designs print the code on a white patch for scan contrast.

How fast do orders ship?

Standard packs print same or next business day. Serialized runs take about 1 week: we send a proof, you approve it, we print and ship.