Nuclear Globe Zorb Ball is our New Design Zorb Ball and maybe it is the funnest zorb ball. 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.