We R Memory Keepers Spiral Punch Multi Cinch Cartridge 3:1

SPIRAL BINDING HOLE PUNCH - With this spiral binding hole punch, you can quickly create holes for spiral binding; the punch is an accessory for DIY bookbinding with the Multi & Universal Cinch book binding machines BINDING PAPER - Create your own planners, books, and journals in no time; suitable for beginners and experienced crafters: you can easily follow the guidelines on the punch and binding machine PUNCH UNIQUE HOLES - With this binding spool, you can punch round holes (3:1) in paper, cardstock, thin cardboard, and more, for spiral binding with plastic or metal binding combs EASY TO USE - You can easily click the punch in and out of the book binding machine, allowing you to switch between the desired shape EASY TO USE – Simply click the punch in and out of the bookbinding machine, so you can switch between your desired shape at any time