The retractable plastic bracelet coil keychain is made of lightweight and soft plastic material. It can be worn comfortably on the wrist and features loud whistles. The elastic bracelet strap is convenient and versatile, making it ideal for coaches, emergency situations, safety measures, lifeguards, sports games, hiking, children’s party gifts, and more. The product also offers the option to print brand logos. With dimensions of 2.16″L x 0.63″W, it’s a practical and functional accessory.