MR.Jiang Pet Leash Rope LED Flashing Dog Safety Lead Light Nylon Secure Convenient Waterproof Durable It is also an excellent way to ensure both you and your pet's safety. Material:nylon strap+super bright light flat fiber. Color:Blue;Red;Orange;Yellow;Green;Pink;Multi color. 3 light modes:Continuous on,Slow flashing,Fast flashing(with switch to select). LED Powered by 2pcs CR2016 Cell Button.