Quality: The rotating buckle and key ring are made of high quality zinc alloy, which is durable, sturdy and durable, and has a long service life. Size: The hook is 32mm long, 1cm wide and the inside diameter of the key ring is 2.2cm. Excellent size for your DIY projects, art projects, and keychain projects. Ease of use: These rotatable closures have the maximum flexibility of 360 degrees and are easy to use. The lanyard snap hooks are a quick-locking accessory to ensure your items don't fall off. Wide Application: These lobster clasps and key rings are great choices for purses, handbags, dog collars, lanyards, key chains, and fashion jewelry making. colour: silver Material: metal Size: Hooks 32mm, Rings 25mm Package Contents: 30 x Swivel Snap Hooks 30 x Key Rings Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.