The foam found on wood and cling rubber stamps is squishy, it gives a little to help distribute the pressure necessary to get a good imprint. This product is not squishy, it is hard, in fact it has near zero give. It is porous which might be good for other uses, I don't know. But it is not self-healing. Repeated use with anything sharp or heavy will damage the porous structure.
This product is not a substitute for rubber stamp foam, nor one of those old fashion mouse pads. Buyer beware. They call it a "secret weapon" which is an odd name. The secret part might be the gnomes of Zurich giggling. It certainly will not give you better stamp impressions.
I already had the larger version that stays on my work top, but this is the perfect size to take with me when I go to other locations for crafting projects, group efforts, or classes. Some of the less expensive stamps can be difficult to work with as some are extremely soft and flexible making it hard to get a clear imprint. This little gem will solvw your problems.