This mighty mini duo is a fantastic combination for bags; totes; handbags; purses and so much more! This set of LED mini lights come in a Carabiner hook style with a on/off switch for hands free use (2-1/2x2-5/8x1/2in) and the Key-chain light has a button (1-5/8x1x3/8in). Featuring solid construction using hard to break ABS; a brilliant white light beam visible up to a mile away. Batteries included.~