The RubiCoil is a great little spiral binding machine with the capabilities to punch up to 10 sheets at a time. It features a binding slot on the inserting table, which aids in the inserting of the spiral binding coil for a faster and more efficient bind. The RubiCoil also has a "U" shaped handle for maximizing punching strength, has hardened steel dies for clean and precise punching every time. The Rubicoil has the strength to punch through paper, PVC, Polypropylene, Polyester, and more. Metal chassis and high quality components guarantee durability and reliability and the side margin guide lets you adjust the position of your first hole, allowing for an evenly centered document. Hand Cutter Crimper Pliers are included with your purchase. These are used to cut and crimp the coil in, finishing your book.