SIZE - The package includes 4 7cm long carabiner hooks and 4 key rings with a diameter of 3cm, which can be used together. MATERIAL - The carabiner clip is made of steel and zinc alloy, which is strong, waterproof, durable, not easy to break, does not rust, and can be reused. DETACHABLE - The key ring is detachable, so you can use the carabiner and key ring separately. The keychain hook has good elasticity and can rebound quickly. PORTABLE - The keychain hook is small and lightweight. It can be hung on your backpack, handbag, and belt. You can take it with you when you are on business or traveling. APPLICATION - The mini key clip is convenient and practical. You can easily add and remove keys and other accessories. It is suitable for home, school, and office use.