Olfa Blades Black X-Sharp 50 Per Pack Ultra Sharp 9mmFor: 9mm cutters Cat No: ABB 50 Qty: 50 Pack With this OLFA UltraSharp blade, you&ll be surprised at the difference 25% can make. Less resistance means quicker and more precise cuts. The blades are designed to cut through packaging, shrink wrap, vinyl, window film, wallpaper, caulking, foam board and other materials. (ABB 50) Good For: Applications such as paint, window film and packaging. Cuts tape, shrink wrap, wallpaper, film, cardboard, caulking