Glow in the dark dog lead is maximum safety, Maximize the dog's visibility and presence, prevents accidents and keeps them safe.make the pet dog and owners visible at all times. Waterproof nylon material-This led light up dog leash is water resistant high tensile strength nylon webbing and encased battery door so it will work in light rain without fail. Fully rechargeable battery pack-plug into any USB port to charge. Led light up leash is equipped double led optical fiber and high bright led light, Safer and brighter.