Inkadinkado Bird Cage Cling Stamp Set 8-Pieces. cling stamp set size: 1 sheet 6-Inches-by-6-Inches and 1 sheet 6-Inches-by-4-Inches 8 pieces. cling stamp set size: 1 sheet 6-by-6-Inch & 1 sheet 6-inches-by-4-inches Red rubber stamp for quality and precise stamping Self clinging and repositionable - can be used over and over again for versatile stamping Requires clear acrylic mounting block to use