This stamp set has thick foam with deeply etched rubber. There are 6 different rubber stamps that can cling mount to any clear acrylic block (clear blocks are not included in this sale, but are available through the store!).  What a space saver! They are part of a line of stamps curated by Tim Holtz.

The stamps are also neatly trimmed.  The stamp sheet measures approximately 7 x 8.5 inches.