Durable: The elastic cord is made of plastic with well spring, steel ring and lanyard buckle at the ends Bright Colors: 7 colors of blue green red black yellow white purple available to meet your different key demands SUPER Elasticity: Good gloss and quick rebound, including stainless steel wire rope, not easy to break, with extreme load capacity. Wide Application: Good for work card, key or other small tools in the workplace; Attach it to pants with a belt clip and you won't have to search for keys.