Kids absolutely love the Roller 'cause they can run, laugh and fall together with their friends inside the Roller. The Roller takes 1-4 kids at a time, depending on age and size. Suitable for kids from 3 years to 12 years. A wet or dry ride is also available. In warmer weather and pending the child's comfort with water, water is added inside the Roller to allow for a splash and cooling effect with added fun. Very popular.