Add depth and dimension to your projects with Sticky Thumb black dimensional adhesive foam dots. This 275-piece mixed pack of 3mm thick foam dots includes 165 small 6mm (1/4 inch) dots, 50 medium 8mm (5/16 inch) dots and 60 large 11mm (7/16 inch) dots, so you have the right size on hand. Simply pull the dots smoothly from the 4x2 inch backing sheets and apply.