Rolling Trimmers are the new generation of paper cutters. Designed for safety and accuracy, the cutting blades are encased in a plastic housing that virtually eliminates the chance of personal injury. The rotary action of these trimmers allow the blade to cut in either direction and sharpen itself as it cuts. It"s this self sharpening action that produces a clean burr-free cut and guarantees many years of smooth precise cutting. Cuts the following: Foil, Cardstock, Construction Paper, Label Stock, Laminator Film, Paper, Photo Paper, Photographic Film, Specialty Papers, Vellum