Marigold 12-inch Multipurpose 4-in-1 blades(Perforation,Score,Wave,Straight) scrapbooking craft Rotary Paper Trimmer (MT401) 4 blades inside one cutting head: straight/perforation/wave/score Swing out extension arm extends your measuring to a full 14 inches Max Cut 3 sheets of 20lb copy paper Cutting width: 12inches