CARL heavy duty "slim" rotary paper Trimmer with a 45 sheet Cutting capacity - 12 inch Cutting length - black, silver equal pressure system cuts up to 45 sheets of 20 lb. Paper luminous paper holder allows precise Cutting, scoring or perforating. Locking rail mechanism makes your Cutting simple and accurate. Adjustable, magnetic paper guide prevents paper from sliding. Perfect for Cutting cardstock, chipboard, plastic sheets, photos and more.