We R Memory Keepers-The Crafter's Ultimate Cutting Tools: Magnetic Twist Trimmer Combo Pack. The strong magnetic ruler makes this quick cutting system safe and a cinch to use. Simply twist the blade carriage (lowers the blade) and cut. With eight different blades included in the Combo Pack you are sure to have just the right cutting design for every project! Trimmer features a 15-1/2-inch / 39cm ruler and included one of each blade: straight; scoring; perforated; scalloped; pinking; stamp; wavy and deckled.