... down a hill or grassplot inside a giant inflatable ball. Its great for using down local hills, parks, ... Ball also named Inflatable grassplot ball, Inflatable roller ball, land ball, Inflatable human hamster ball, giant inflatable human hamster ball etc. Zorb Ball ... other Customized zorbs...Customizable: Color, string rings, entrance, strings, harness, zipper, logo printing, matress...OEM is welcome! ...