Thumb-Lite is the worlds smallest and brightest, stick on LED light, With it"s high strength adhesive, powerful LED, and unlimited applications, Thumb-Lite turns everything into a flash light, Backed by a life time guarantee, and the only key light with a replaceable battery, Thumb-Lite will always be there to light up the way, Just pull off the adhesive backing and stick your Thumb-Lite on the object of your choice, whether it be a key, tool, briefcase or purse, SKU: THML001