Patented locking rail mechanism and premium carbide blade ensure a clean, accurate cut. Adjustable magnetic paper gauge is great for making repetitive cuts. Durable metal base is calibrated and features alignment grid, ruler and preset measurements for common-sized items. Cuts mat board, card stock, plastic sheets, 1/8 foam board, etc. Handy storage compartment for extra blades and cutting mats. Trimmer Board Type: Rotary; Sheet Capacity: 30; Cut Length: 12 in; Trimmer Board Special Features: N/A.