CARL Heavy-Duty Trimmer Heavy-duty rotary trimmer is designed for the most demanding trimming projects and made with a high percentage of recycled ABS plastic. Patented locking rail mechanism and luminous paper holder are made of light harvesting acrylic. Use rotary trimmer to trim up to 36 sheets of standard copy paper. Trimmer also cuts cardstock artist black-core matboard 1/8 foam board and plastic sheets. Handy storage compartment holds extra blades and cutting mats. 12 trimmer also includes handy built-in paper guide carrying handle spare cutting mat and straight and perforating blades.