Illuminated discs that really work. Weighed down by their batteries, most light-up discs fly like rocks. The FlashFlight looks, feels and flies like high-performance, non-illuminated discs. Its ultra-bright L.E.D. and 9 fiber-optic strands show brightly from any angle, and the replaceable batteries last for 15 on the Disc-O. Made by Nite Ize, it's durable, waterproof and floats. 11" diameter. 185-grams. Very groovy, the Disc-O changes colors in flight.