Type: DogsCollar Type: Basic CollarsMaterial: NylonFeature: Lights・Quick ReleaseSeason: All SeasonsPattern: SolidDescription:It is also an excellent way to ensure both you and your pet\'s safety. Features:Material:nylon strapColor:Blue;Red;Orange;Yellow;Green;Pink.LED Powered by 4pcs CR2016 (include) Cell Button.Battery life:60 hours.3 light modes:Continuous on・Slow flashing・Fast flashing(with switch to select).tem Size:XS = Width 1.5CM * Chest Length ( 32 - 38 ) CM S = Width 2.0CM * Chest Length ( 32 - 40 ) CM M = Width 2.5CM * Chest Length ( 38 - 50 ) CM L = Width 2.5CM * Chest Length ( 43 - 60 ) CM