The CARL Rotary Paper Trimmer CUI12200 is a professional rotary trimmer featuring a 12" blade, making it ideal for various office tasks as well as school and arts and crafts projects. It utilizes patented Carl rails and premium carbide blades to securely hold paper and paperboards in place for precise cutting. The trimmer is built with a sturdy, metal calibrated base for enhanced accuracy and stability, complete with preset measurements for common-sized items. It can cut through up to 10 sheets of standard copy paper and is compatible with optional B-Series blades for 11 different cutting patterns.