Add Quality Products to Your Life with Less Time and Money! Specifications: Material: Zinc Alloy Color: Silver Outer Dia: 1.65" / 42mm Inside Dia:1.26" / 32mm Features: Silver O spring ring is made of zinc alloy, light weight and high strength. Spring clip design, quick release. It is very convenient to take along. It has wide range of applications, you can used for daily life, attached to the backpack, handbag, or use it just as a keyring. Package Included: 4pcs Silver metal O ring Welcome to our store! Enjoy quality and healthy life! We use a sincere and persistent heart and are committed to providing customers with more quality products! When you encounter any problems, please email to us and we will try our best to meet your satisfaction!