Hofason 10 Pcs Binding Rings Comb Binding Spines Coil Binding Machine Plastic Spiral Manual Comb Binder

RELIABLE MATERIAl: All loose-leaf binder book rings are made of high-quality plastic, waterproof, rust-proof and not easy to break UNIVERSAL SIZE: Each ring plastic binder is about 6 x 4 x 2cm/2.4 x 0.8 x 0.4in, with an inner diameter of 12mm/0.5in, suitable for most book or album size needs PACKAGE INCLUDED: You will get 10 loose-leaf binder book rings, enough to make a few notebooks for you, so you don't have to buy new ones as often WIDE APPLICATIONS: You can easily expand and close it; they have such a flexible design that you can use them for DIY travel journals, photo albums, scrap bookings, loose-leaf notebooks and graduation alumni books