Specification Packing: 200 pcs Material: metal plating Color: silver Size: 4mm(0.16in)x7mm(0.28in) Suitable for beads of 2mm-4mm. Strong, corrosion resistance, durable, not easy to fade, can be used for a long time, has anti-rust and skin affinity. Usually used as the end of a bead chain to hide the knot at the end of a beaded wire harness and connect the wire harness to the buckle. Strong and easy to use, you can enjoy the safety of knotting behind the beading technique. If the tip is broken, the beads will not be scattered everywhere. Used to connect a wire to a buckle and cover the knot at the end of a beaded necklace or bracelet to connect with the buckle. One side of the crimping cover is opened and can be slid on the crimping tube. It is used with the crimping line. The crimping bead is crimped to ensure the start and end of the stranded wire. Suitable for all kinds of chains or ropes.