8 pk Blue Laser Finger Beams - Bright LED finger lights for raves or other party occasions Add some blue light to your party. Tiny, but with an ultra-bright blue LED, the torch straps on to a finger with blue silicone strap. It's a constant beam. Useful but with potential for clubbers and party goers. Batteries included 4cm. Ages 6 and above. 8 finger lights.