Trimmer. Change blades as quickly as you change your mind. Features fully enclosed blade cartridges that make it easy and safe to instantly change blades. The secure cutting rail locks paper in place, guaranteeing smooth cuts, accuracy and precision. Use the trimmer’s extendable arm to cut 12×12 inch paper up to a weight of 400 gsm. This package contains one 12×8 inch pink portable cartridge trimmer with one straight blade cartridge, one scallop blade cartridge and one score blade cartridge.