If you enjoy juggling & the tricks associated with it you will thoroughly enjoy the Yo Ho Juggling Balls & CD ROM. There are three balls that glow at varying speeds when activated. You can choose from bright & fast flashing effects or a slow pulse. For novices or experienced jugglers who want to enhance their skills, the handy CD ROM shows over 60 tricks you can learn with practice. You can delight onlookers with your skill & the fun light show that looks dramatic when in use. Features include: Manual turn off switch Assorted colours CD ROM Video instruction Batteries included 6 cm balls 3 pack of balls CD Rom recommended requirements: PC: PIII 16hz, 128mb RAM, sound card MAC: OS10