The Zorb Balls with Track is for all ages and measures 100’x33’9’ Challenge your friends to a world of fun with the most insane race you’ll ever experience! Once you get inside, you will understand the term human hamster ball. An attendant is important to ensure the safety of those in the Zorb Balls. This could be a volunteer of your own or someone from our company. An attendant from our company is $30 per hour. While the Zorb Balls do not need continuous power, they will need electricity throughout the event for re inflation and will need an electrical source at set up to inflate the hamster balls.