Colorful Dots Zorb Ball is the sport of rolling down a hill inside a giant inflatable ball, Zorb Globe. It's great for using down local hills, grassplot, grassland, parks, play areas, football pitches and Inflatable Zorb Slide Ramp, Zorbing Orbit, snow field, etc. The hot sales is 3m Diameter zorb ball and there are still 1.8m, 2.5m, 2.8m, 3.5m, 4m Diameter for your option.