KEYGUARD®

Manga Bumper for Graded Slabs

A manga bumper should do one thing perfectly: take the daily abuse so your slab doesn't have to. KEYGUARD's manga bumper is injection molded TPU sized for graded manga slabs, snapping on in seconds and staying on through shelving, shipping, and display.

The case for a bumper on every graded manga volume

Manga collectors handle their books more than almost anyone in the hobby. Volumes get pulled for reading photos, compared against other printings, packed to conventions, and shelved in tight rows where slab edges grind against each other.

Every one of those moments lands on the same few millimeters of plastic: the outer rim and corners. A manga bumper moves that wear onto a replaceable TPU edge instead of the slab itself.

Sized for manga, not adapted from comics

A standard comic slab bumper on a manga slab fits like a borrowed jacket. KEYGUARD's manga bumper is molded around the manga slab outline in both manga sizes, so the snap-on fit is tight, even, and stays put.

Why TPU beats silicone and 3D prints

Silicone bumpers go tacky, attract dust, and stretch loose over time. 3D-printed PLA guards are brittle and crack at the corners. Injection molded TPU sits between them: firmer than silicone, flexible under impact, and stable for years. It's the same material family trusted in flagship phone cases.

Part of a complete manga protection setup

Pair the bumper with two-piece top loaders for raw books and a KEYGUARD carrying case for convention travel. One system, sized for the way manga collections actually move. Shop the manga bumper or browse all KEYGUARD protection.

Frequently asked questions

What is a manga bumper?
A manga bumper is an edge-wrapping guard, usually TPU, that snaps onto a graded manga slab to help protect its edges and corners from chips, scuffs, and direct impact.
What sizes does the KEYGUARD manga bumper come in?
Both graded manga slab sizes are covered. Each size is molded to the manga slab outline rather than adapted from a standard comic slab profile.
Can I shelve manga spine-out with the bumper on?
Yes. The bumper adds only a slim edge profile and is designed for exactly that: tight rows where slabs slide against each other.
How much does the manga bumper cost?
$12.99 in either size, up to 10 per order. Flat shipping: $9.99 USA, $25 Canada, $50 Europe and Dubai, $75 everywhere else, duties included internationally.
Does the manga bumper guarantee protection from damage?
No accessory can. It is designed to help reduce everyday wear and direct impact exposure but cannot guarantee prevention of damage under all conditions.