SET OF TWO Light Thumbs - Batteries already installed! SAFE TO USE D'Lite is RoHs compliant and is made with materials that are environmentally friendly; D'Lite contains no Phthalates, which are known to upset the endocrine system NEVER REVEAL magic secrets with anyone but another Magician SHOW YOUR HANDS EMPTY - Always keep D'Lite shielded from your spectator's view by not showing your open palms, especially when your hands are not moving Imagine plucking a bit of light from the air and tossing it from hand to hand, then it just disappears... or passing the bit of light through your body... or seemingly swallowing light then spitting it into the air and catching it. All of these effects, and more, can easily be accomplished with D'Lite. Lights can be found in pockets, behind children's ears, in books, really almost anywhere. Looks fantastic and very easy to do. Practice will even hide the secret devices better... and you will really want to practice! These are designed for usual adult size hands, not small hands or children's hands. Buy now and make some magic!