Heavy Duty 36 Sheet Rotary Paper Trimmer is green friendly trimmer, cuts cardstock, artist board, plastic sheets and more. Patented locking rail mechanism and luminous paper holder is made of light harvesting acrylic that makes cutting easy and accurate. Adjustable magnetic paper guide holds materials on a calibrated metal base board. Features a storage compartment for extra blades and mats. Spare cutting mat, straight blade and perforating blade included. 12" Cutting Length. 36 Sheet Capacity. Limited Lifetime Warranty (excluding blades and cutting mats).