Description:[Copper Material] Durable and sturdy, not easy to rust, corrosion resistant, anti-allergic, for long-lasting wear. Glue-in style clasps, easy to use, can be put on and taken off by a single hand.[Clasps with Buckle] As a clasp with buckle, you only need to twist the buckle to lock it. The bracelet would stay around your wrist, or twist the buckle to untie it, so you can easily remove the bracelet.[Easy To Use] Align the buckle of the locking end cap and connect, add glue to the hole of the button and the end of the rope, then insert the end of the rope into the hole until bonding, the clasp is easy to open or close by twisting the button.[Wide Application] Applicable to a variety of material chains, such as leather rope, and, satin, cord, necklaces.