High-quality materials: The dog collar is made of plastic. It is resistant to falls and bites, and does not harm the pet's skin at all; Stainless steel hooks won't rust even if it touches water. Easy to use: two simple modes - glow and flash. Press once for steady light, press twice for fast flashing, third time for slow flashing, fourth time for light off. Durable: Simply attach the light to your dog/cat's collar, key chain, and anything with a hook or zipper. Press the power button to use it normally. Multi-use: attach the lightweight and durable Safe Light to your pet's collar, or use it as a carabiner, key chains, locate tent lines and camping gear. Perfect Gift: Flashing LED Dog Collar Flash can provide flashing LED lights for your pets stay visible and safe at night or in low light; This bright led safety light is an ideal gift for dogs.