Specifications: High-Quality Material: Crafted from a premium alloy with enamel, these Spring O-Rings are designed to withstand daily wear and tear. Size: These O-rings clasps measure 32mm wide, 26mm long, and 5mm thick, 18mm inner diameter, providing a reliable clasp for a variety of projects. Package Include: Each pack contains 13 different colors in a pack, allowing you to mix and match for a personalized touch. These vibrant spring keyrings buckles are perfect for adding a pop of color to your accessories, making each piece stand out and reflect your unique style. Easy to Use and Install: These Metal Spring O-Rings are easy to attach and remove, providing convenience and practicality for users. Their spring mechanism makes them ideal for creating secure closures on keychains, bags, and other accessories, ensuring that your items stay securely in place. Ideal for Adults and Gifting: Suitable for adult use, these O-rings are not only functional but also fashionable. They make excellent gifts for crafters, jewelry enthusiasts, and those who appreciate high-quality accessories.