Eco Green Crafts Acrylic Stamping Blocks, Set of 3 Clear acrylic blocks for perfect placement Use with any self-cling cushion stamp Various sized blocks to fit any size stamp Acrylic Block Set of 3 comes with block sizes: 1-1/2 by 1-1/2-Inch, 2-1/2 by 2-1/2-Inch, and 3-1/4 by 3-1/4-Inch