A must-have for stampers, this acrylic block set is designed for use with all of your clear stamps. Each block features gridlines to ensure straight, accurate placement, as well as sculpted sides for easy gripping. This set includes four sizes to give you more control over large and small stamping jobs. Details: 0.39" thick4 blocksAcrylicFor use with clear stampsReusableContents: 6.5" x 2" block3" x 3" block2" x 2" block1" x 1" block