LED light makes finding a keyhole in the dark easy. Slim profile, easy-to-use. Sleek design won't add bulk to keys. Push-button style On/Off. Pull apart key holder makes it easy to leave keys with valets, family, friends, etc. Batteries included. Size: 2-1/8" length (without split ring). Assorted colors: Black, blue, and red. cannot specify color. 1 per card.