The SpotLit Carabiner Light 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 pet collars, key rings, jackets, backpacks - just about anything with a hook or zipper. Its long-lasting LED provides an ambient glow bright enough for everything from reading fine print, illuminating keyholes, marking hazards, or staying visible at night. With Disc-O Select technology, you can select from six different colors for easy identification or you can go buck and leave it cycling through all the colors in Disc-O Mode. Powered by two replaceable (included) 2016 batteries, this little light will keep going for over 20 hours.