Features: 1.These hinged rings are superior in quality, not easy to deform, and can withstand long term use 2.Made of nickel plated metal, these hinged rings are rust resistant, can stay untouched for a long time in favorable conditions 3.Multipurpose: you can use these hinged rings to bind documents, scrapbooks, family albums, etc. And can also used as key rings 4.These hinged rings are almost seamless while they are closed, yet they can be easily opened, if you act right 5.There will be 20 pieces hinged rings of the same size in every package. And three sizes are available for you to choose, namely, 25mm, 30mm and 38mm specification: 1. These hinged rings are superior in quality, not easy to deform, and can withstand long term use. 2. Made of nickel plated metal, these hinged rings are rust resistant, can stay untouched for a long time in favorable conditions. 3. Multipurpose: you can use these hinged rings to bind documents, scrapbooks, family albums, etc. And can also be used as key rings. 4. These hinged rings are almost seamless while they are closed, yet they can be easily opened, if you act right. 5. There will be 20 pieces hinged rings of the same size in every package. And three sizes are available for you to choose, namely, 25mm, 30mm and 38mm. : Condition: 100% Brand New Item Type: Hinged Ring Material: Nickel Plated Metal Color: Silver (as shown in the pictures) Quantity: 20PCS Optional Sizes: 25mm, 30mm, 38mm Package Weight: 45-105g Package Included: 20 x Hinged Ring Only Note: 1. Item color displayed in the pictures may be slightly different from the real object, due to different monitors or other factors. 2. And please allow 1-5mm error due to manual measurement. Thanks for your understanding.