Olfa - AB-50B - Standard Blades 50-packThis pack of 50 silver snap off blades is a lifesaver when you're busy working on a project. Simply insert a blade in your OLFA knife, and you've got 13 blade edges to work with. The blades are designed to cut through packaging, shrink wrap, vinyl, window film, wallpaper, caulking, foam board and other materials. Good For: Applications such as paint, window film and packaging. Cuts tape, shrink wrap, wallpaper, film, cardboard, caulking and more.