Allows you to make any rubber stamp into an EZMount stamp that clings perfectly to an acrylic block. No sticky mess and never wears out! Size: 8.5" x 11" (215mm x 280mm) Note: It is not recommended you store any of your EZMount stamps on acetate sheets. Acetate is made with chemicals that react with EZMount and other cling cushion type product, making it almost a permanent bond between it and the cling.