Discover the versatility of our round carabiner keyrings with these handy O rings! With 25 colorful options, you can mix and match to your heart's content for all your DIY projects. These O rings have an inner diameter of 1" and outer diameter of 1.3", with a thickness of 4mm. Keep in mind, manual measurements may have a margin of error of ±1mm. Plus, our spring keychain clip design makes it a breeze to use and attach to any item. This round carabiner O ring is the perfect addition to your handbags or a replacement ring for straps. Crafted from high-quality alloy material, our smooth and sturdy O rings won't scratch your belongings. Get creative and use them to decorate and replace most items, such as key rings, pet collars, jewelry clasps, and more. These round keyring clips also make a great gift for a friend who loves DIY projects.