From the creators of the world famous “Light Chaser,” with over 30 million sold! Underwater Light Show A disco ball for the pool. Creates a whole new night-time experience in your pool or spa! Projects exciting, variable light patterns onto the bottom and sides of your pool. Four (4) light patterns with auto-off switch Runs on three (3) AA batteries (not included) Product dimensions: 6" L x 6" W x 5" H Pools larger then 10,000 gallons may require more the one disco ball Patent pending        Great               for                 Parties