The Domagiker Light Up Dog Collar is a great way to keep your dogs safe and visible at night. Made of nylon webbing with a light guide, this collar is rechargeable and adjustable. With three flashing modes, you may find your pets easily in the dark by these light-up dog collars. The water-repellent and rust-proof design makes this dog glow collars adapt to most weather conditions. But must keep the battery case dry and do not use it underwater.