Features: Made of alloy material, lightweight, durable and sturdy. High resilience stretch nylon rope. Used as a key buckle, effectively anti-theft. Applies to a variety of : such as advertising promotions, gifts, etc. Adopt fine workmanship and delicate design, you to use. Specifications: Condition: 100% Brand New Material: Alloy Weight: Approx. 12g / 0.4oz Buckle Size: Approx. 8cm / 3.1in Nylon Rope Length: Approx. 35cm / 13.7in How to use: Put key on the belt, put key on the key , and stretch it out to open door during use. Let it go when not in use, it will automatically spring back to the waist to avoid frequent key loss caused by random throwing away. Note: Do not pull steel wire with excessive force, which may cause problems with return spring. Package list: 1 * Key Buckle