DescriptionOur book rings are made of durable, long-lasting materials that are perfect for your every day needs. for schools, offices and home. This book ring is made of steel for a smooth surface and silver finish.Feature- Color: Silver. - Material: Metal. - Size: About 2.5 x 2.5 x 0.2cm. - GREAT MATERIAL: Loose leaf ring is made of iron material, strong and durable, Multi-layer steel rings prevent rusting, color unfading. - EASY TO OPERATE: Convenient to use just pull to open and squeeze to close; the misalignment occurred after opening, because the binder ring itself did not use spring or other elastic devices, in order to make the bite tightness after closing more tightly, so this design was used. - WIDE APPLICATION: Binder Rings are suitable for loose-leaf, memo filing, key rings, scrapbook, binding recipe, photos, book, sample book, scrapbook, contract or file.