Card Dividers for Storage Boxes Trading Box Dividers Multifunction Card Sponge Shock Absorbing Sponge Suitable for Almost All Boxes to Fill Extra Space Security Black(20 Pcs)

Does well to protect cards in boxes and works very well as a divider. A little smaller than the ones I use to get but still works to provide stability to cards in the box.

Easy to divide cards!

I was at first concerned to receive these and see them misshapen. But it appears that during shipping, they were stuck in certain positions which rendered them so. After a couple hours out of the shipping bag, they all conformed to their original shape. These are great to use in separating and protecting cards in storage.

I will never try these again. They are way too small to securely hold cards in an upright case. Even if you put them longways, as show in their imagery, they do not look as cleanly snug as you see on this listing. They are essentially pointless for cards unless you just want a soft buffer between cards that isn't going to keep them in place.

Foam blocks work as intended, but they feel a bit less thick and firm as I was expecting. Additionally, all of the squares were relatively the same shape, but it's clear there's not a consistent cut across all of them.They'll get the job done at a good price, especially if you're dealing with card containers that are more full than empty.

These have worked well with my monster boxes. They don’t leave any residue on my Pokémon cards and I would definitely buy again.

They do exactly what you expect them to do: fit and fill in loosed and gapped spaces. They're especially useful for deck boxes for putting an end to the rattling noise made when moving them about, and more importantly, they're another layer in protecting your cards.My two gripes are that they don't come in a variety of sizes and/or thickness, and the price relative to what is essentially a foam block cut up for you.

Sponges are not cut to same size nor are they cut evenly. If this would not bother you, they are fine.