SUNDAY INTERNATIONAL-Acrylic Stamping Block Starter Set. These sets of blocks for clear or unmounted stamps are a great place to start! Each set contains several shapes and sizes of clear blocks for a variety of abilities. Each block features a single beveled edge for comfort. This package contains four blocks: 5 by 5in; 4 by 4inin; 3 by 3in and 2 by 3in. Made in USA.