Yinkin 40-Pack EVA Foam Card Dividers for Storage Boxes – Black Shock Absorbing Spacers, 3.5 x 2.5 x 0.8 Inches

These Yinkin EVA foam card dividers fill extra space inside storage boxes to keep trading cards secure. Each pack contains 40 vacuum-packed sponges, each measuring 3.5 inches long, 2.5 inches wide, and 0.8 inches thick. The black foam has moderate density, offering shock absorption without being too soft. Made from EVA, these dividers have smooth, burr-free edges from precise die cutting. They work with most standard card storage boxes to prevent cards from shifting, bending, or getting damaged during transport or handling.

What size are these Yinkin foam dividers?

Each individual sponge measures 8.9 cm (3.5 inches) in length, 6.5 cm (2.5 inches) in width, and 2 cm (0.8 inches) in height. The uniform size makes them easy to stack or arrange in a row. The moderate density means they compress slightly under pressure but spring back, holding cards firmly in place.

How do these EVA spacers protect trading cards?

The EVA foam absorbs shocks and impacts that could otherwise damage cards. When you have empty pockets or gaps inside a storage box, these dividers fill that void. This prevents cards from rattling around or sliding into each other. The foam itself won't scratch card surfaces because its edges are die-cut smooth—no rough spots or burrs. Many collectors use them to keep valuable trading cards (like sports cards or TCG decks) from getting bent corners or creases during travel.

Where can you use these black foam blocks?

Yinkin designed these spacers for almost any storage box that holds cards. They fit into plastic or cardboard trading card boxes, shoebox-sized containers, or even larger totes if you need to protect smaller items inside. Besides cards, you can use them to cushion small collectibles, vinyl figures, or other fragile objects that need secure positioning. The black color blends in with most box interiors and won't show dirt easily.

Are the sponges ready to use right away?

Yes. The dividers come vacuum packed to save space during shipping. Once you open the package, they expand to full size immediately—no waiting, no preparation. Because they're compressed before opening, the pack is compact and easy to store until you need them. After releasing, each sponge retains its shape and density without any special care.

Specifications at a Glance

Common Questions About These Card Dividers

What are these dividers made of?

They are made from EVA (ethylene-vinyl acetate) foam, a material known for good shock absorption and resilience. The foam density is moderate—not too hard, not too soft—making it effective for cushioning without being easily crushed.

How many pieces are in one pack?

Each package contains 40 individual black foam sponges. The exact item count is 40, and they are shipped vacuum-sealed for compactness.

What are the exact measurements of each sponge?

Each sponge is 3.5 inches long, 2.5 inches wide, and 0.8 inches thick. In centimeters, that is about 8.9 cm x 6.5 cm x 2 cm.

Can these be used in any storage box?

The manufacturer states they are suitable for almost all boxes. They are designed to fill extra space and secure cards or other items. Their size makes them ideal for standard trading card boxes, but they can be trimmed if needed (though not recommended for precise fits).