WalGap (TM LED Flashing Lights Dog Collar Nylon Fluorescence Webbing super bright LED optic lighten fiber 100% Brand New and high quality The Item have three modes:1.Steady On 2.fast flash 3.normal flash You get 60-80 hours of steady light, or over 100 hours of flashing light with each collar and leash set Walk Your Pet Safety and Be Seen!