Features: brand new and high quality You Will Get: 16 spring O-rings, 4 different sizes, 4pcs of each size, enough quantity to meet your different need. Reliable Material: Made of high quality alloy material, the round snap button is light and durable, high strength, not easy to break, resistant to corrosion and rust, beautiful color, making it a popular DIY accessory. Easy To Open And Close: Hook clips are designed with built-in springs to fasten the point quickly and securely, flexible enough to stretch and return to their original size and shape for smoother opening and closing, easy to use and carry. Versatile: Spring buckles are great for making chest harnesses, clothing and luggage belts, handbags, keychains and dog collars, handbags, flat cords, lanyards, leashes, or can be applied anywhere you want to hang your crafts or decorations. Exquisite Gift: Make fun accessories for arts and crafts as a gift for your family, friends, or someone who loves crafts. Specifications: Color:Silver Material: Alloy Diameter1:Approx.20mm/0.78in (More detailed,please see photo.) Quantity:16pcs Note: Please allow a little error on the size due to manual measurement. The color might exist slightly difference due to different displays. Package includes: 16x Spring Buckle