Robiear Survival Bracelet With Watch Compass Flint Fire Starter Scraper Whistle Gear Material:Parachute cord and plastic buckle Prefect for outdoor activities, such as hiking, camping It is functional,stylish,and comfortable to wear Size(Approx): Diameter 0.3cm, Bracelet Width 2cm, Length 23cm A survival bracelet enables you to carry several feet of parachute cord easily, which can be used in an emergency.