CARL BRANDS-Heavy Duty Rotary Trimmer. This green friendly trimmer cuts cardstock, artist board, plastic sheets and more. This paper trimmer can cut up to thirty-six sheets of paper. Adjustable magnetic paper guide holds materials on a calibrated metal base board. This 16-1/2x21x4-1/2 inch package contains one heavy duty rotary trimmer with a twelve inch cutting length, a patented locking rail mechanism and luminous paper holder made of light harvesting acrylic that makes cutting easy and accurate, a storage compartment for extra blades and mats, one spare cutting mat, one straight blade and one perforating blade. Imported.