Apple Pie Memories Acrylic Stamp Block-2 X 12 X .5 Thick. This acrylic stamping block is made for use with clear stamps. Size: 2 x 12 with a 0.5 thick laser polished rounded corners. The great advantage in using see-through crystal-clear acrylic stamping blocks for unmounted stamps is that you can see exactly where you are placing the stamped image on your work! Made in USA. Meets CPSIA (Consumer Product Safety Improvement Act) Standards.