The Extreme Flash Thumb Tip by Alan Wong provides the performer a way to create an intense burst of white light at the push of a button! Each unit contains a rechargeable high capacity lithium battery with a super bright white LED, all encased in an ordinary rubber-type thumb tip. The flash of light seems to come from nowhere, and certainly not from an "empty" hand.  Do be aware that it may be hazardous to stare into the light at close range due to the flash of bright light. Each unit contains ONE Extreme Flash Thumb Tip with PVC carry case. Price includes shipping in the USA. 0072RUMEXTREMEFLS_WHT