The SpotLit LED carabiner light is a fun and functional way to keep pets visible at night or clip it to your keys so you always have a light ready at hand Set in a lightweight stainless steel carabiner it attaches quickly and securely to keychains or pet collars for instant visibility It is available in a variety of colors or choose the unique color-changing Disc-O LED The long-lasting LED is bright enough to be seen from far away and keeps pets friends and just about anything else visible whether you're on a camping trip or walking in the city water resistant and powered by two replaceable 2016 batteries (included) this little light will keep going for over 20 hours.