Cutting made simple and safe! The Cutup Cartridge Trimmer features fully enclosed blade cartridges and an ergonomic handle, making all your cutting tasks easy, safe, and straight. And because the blades are secure in cartridges, it's easy to change styles. Just lift the handle top, pull out one blade cartridge and pop in another. It's that easy! The secure cutting rail locks paper and cardstock in place, guaranteeing smooth cuts, accuracy and precision. It also features an extendable arm that swings out when you need to cut 12"x12" paper. You'll get the trimmer, plus one of each cartridge: straight, scallop, and scoring blades. And if you want more options, just add on the extra Cutup Trimmer Blades (link). Trimmer measures 8"x12". Now cutting is easy and safe!