The Cinch Book Binding Machine by We R Memory Keepers makes book binding quick, easy and affordable. Punch perfect holes with customizable hole spacing on any size project. Then thread the covers and pages onto the Cinch binding wire. This metal hinge binding is perfect for journals, planners, diaries, and more, and it comes in a fashionable gold finish. This package includes 4 metal hinge bindings that fit books with a 2:1 pitch.