Standard size: 1 inch inner diameter, up to 175 pieces of 20 pounds of paper, 100 live pages live pages clip. High-quality: Made of durability, multi-layer, nickel-plated steel, and rust-proof. Operation description: It is convenient to use, just pull it to open, squeeze it to close; after opening, the dislocation appears, because the live pages folder itself does not use a spring or other elastic device. Multi-function: Use these convenient rings to bind documents, or to link together a multitude of different materials,Great for loose-leaf, memo filing, key rings, scrapbook, binding recipe, photos, book, sample book, scrapbook, contract or file. Tips:Due to the small size of this loose-leaf ring, children should be accompanied by adults to prevent swallowing and pinching. Colour:Silver Material:Metal Size:inner diameter 1 inch/25 mm Package Contents: 60 * rings Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.