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 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. Specification:Condition: 100 percent Brand NewItem Type: Hinged RingMaterial: Nickel Plated MetalColor: Silver (as shown in the pictures)Quantity: 20PCSPackage Weight: 45-105gPackage Included:20 x Hinged Ring OnlyNote: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.