Comic Slab Bumper
KEYGUARD is the original premium comic slab bumper, a snap-on TPU profile designed to wrap the outer edge of a graded comic slab and add an everyday layer of edge protection. Built around the same materials philosophy as flagship phone cases: firm enough to hold its shape, flexible enough to absorb daily impact.
Why a slab bumper, not a sleeve
Sleeves wrap the whole slab. Bumpers wrap only what gets hit. A comic slab bumper protects the corners, edges, and rim, the surfaces that take the actual impact, while leaving the front face of the slab clear for display. The book stays visible. The label stays visible. The protection is where it needs to be.
What makes a premium TPU slab bumper
Most slab bumpers on the market are 3D-printed PLA: brittle, striated, and prone to cracking at the corner it was supposed to protect. KEYGUARD is injection-molded thermoplastic polyurethane, the same material family used in flagship phone cases. TPU flexes under load and returns to shape, which is exactly what an edge protector needs to do.
The practical test is simple. Drop a PLA bumper and it chips. Flex a TPU bumper and it snaps back. That difference is why every KEYGUARD slab bumper is molded, not printed.
Engineered for fit, finished for display
KEYGUARD's bumper profile is precision-molded to snap cleanly onto modern CGC, PSA, and CBCS slabs. The finish is matte and even, no rough seams, no flashing, no 3D-print striations. The look is intentional. The protection is real.
Wall-display ready
Integrated slots in the bumper let you hang a protected slab from a single flathead screw. No removing the bumper, no separate display brackets. Slab in, slab on the wall, done.
Made for the working life of a graded comic
A slab gets stacked, shipped, photographed, pulled, pushed, and shown. A comic slab bumper is the accessory that makes all of that less risky. KEYGUARD is built for it. Compatible with CGC, PSA, CBCS, and most modern graded comic slabs.
Shop the KEYGUARD slab bumper
Every KEYGUARD ships as a single snap-on TPU slab bumper in your choice of colorway. Browse the full color lineup and specs on the KEYGUARD product page, see how it compares to sleeves and printed bumpers on the comparison page, or read the collector glossary if you're new to slab terminology.
Frequently asked questions
- What is a comic slab bumper?
- A comic slab bumper is a snap-on accessory, usually TPU, that wraps the outer edge of a graded comic slab to help absorb impact and reduce edge wear.
- Is it different from a slab sleeve?
- Yes. A sleeve wraps the entire slab including the front face; a bumper only wraps the outer edge, leaving the front face of the slab and the grading label fully visible.
- Is TPU better than a 3D-printed slab bumper?
- For edge protection, yes. Injection-molded TPU flexes under impact and returns to shape, while 3D-printed PLA is rigid and can crack or chip at the corners. TPU also has a smooth, seamless finish with no print lines.
- Does it fit CGC, PSA, and CBCS?
- Yes. KEYGUARD's bumper profile is designed as a universal fit for modern CGC, PSA, and CBCS slabs.
- Can I keep the bumper on during shipping?
- Yes, that's exactly when most collectors want it on. KEYGUARD's bumper is designed to absorb the small impacts that happen most often during transit and handling.
- How much does a KEYGUARD slab bumper cost?
- KEYGUARD slab bumpers are $15.00 each, with flat-rate shipping of $9.99 in the USA, $25 to Canada, $50 to Europe and Dubai, and $75 everywhere else. Current colorways and availability are listed on the KEYGUARD product page.
- Does KEYGUARD guarantee no damage?
- No accessory can. KEYGUARD is designed to help reduce everyday wear and direct impact exposure but cannot guarantee prevention of damage under all conditions.