Yinkin 20-Pack EVA Foam Card Dividers for Storage Boxes – Black Shock Absorbing Spacers, 3.5x2.5x0.8 inches

These Yinkin card dividers are EVA foam pads designed to fill extra space inside storage boxes, keeping trading cards, collectibles, or other items secure and preventing movement or deformation. Each pack contains 20 vacuum-compressed black sponges, each measuring 3.5 by 2.5 by 0.8 inches (8.9 x 6.5 x 2 cm). The foam absorbs shocks and cushions contents, making them useful for boxes that are slightly too large for what you're storing.

What are the exact measurements and material?

How do these card dividers work?

The sponges come vacuum-packed to save space during shipping. Once opened, they expand quickly and are ready to use. Place one or more dividers inside a storage box to fill gaps, stop cards from sliding around, and absorb bumps. The EVA foam is resilient and holds its shape over time.

Why use foam spacers instead of bubble wrap or paper?

EVA foam is denser than typical packing materials, providing consistent cushioning without shifting. It won't tear or settle like paper, and its smooth edges won't scratch card surfaces. The black color hides dirt and blends into most storage containers.

Which boxes are these compatible with?

The dividers fit any box with internal dimensions larger than 3.5 x 2.5 inches. Common uses include filling space in trading card boxes, collectible cases, deck boxes, and general storage containers. They can also be cut to size if needed.

Are there any drawbacks?

The foam is not adhesive, so dividers may shift if the box is shaken. For a snug fit, you may need to stack multiple pieces or trim them. The 0.8-inch thickness is fixed; no thinner options are available.

Frequently asked questions

Can I use these for something other than cards?

Yes. The dividers work well for any small, fragile item that needs padding – think coins, jewelry, electronics, or small figurines.

Do the sponges have an odor?

EVA foam can have a slight initial smell, but it usually fades within a day or two. The vacuum sealing may concentrate it temporarily.

Can I wash or clean them?

The product information does not specify cleaning instructions. As a synthetic foam, gentle hand washing with mild soap and air drying may be possible, but it's not recommended to submerge them frequently.

How many dividers do I need for a typical card box?

That depends on the box size and how many cards you're storing. A standard 800-count cardboard box might need 2-4 pieces to fill dead space. The pack of 20 covers multiple boxes.