The Xyron Adhesive Eraser removes most adhesive residue from paper, plastics, glass and more. Acid free, quick and easily removes misplaced adhesives and is non-toxic. Perfect for school and home projects, scrapbooking, paper crafts and card making. When it loses the ability to remove adhesive, trim to expose a fresh edge. This package contains one 2-inch by 2-inch by 3/8-inch eraser.