This Nite Ize SpotLit LED is the perfect mini-beacon whenever you need a little help in the dark. Set in a lightweight stainless steel carabiner, it attaches quickly and securely to key rings, jackets, your dog's collar - just about anything with a hook or zipper. Its long-lasting LED provides an ambient glow bright enough for everything from reading fine print to finding your car door keyhole. Choose from two modes: press once for steady glow, twice for continuous flash. Water-resistant, long-life, replaceable batteries included.