Knockerball is a single chamber inflatable bubble with inner handles and adjustable shoulder straps. Knockerballs range from 1.2 Meters to 1.5 Meters and the size or fit is predicated on your height. Knockerballs can be used singularly to perfect your rolls, flips, and wheels. Great for all occasions and easier to set up than any bounce house out there. Inflation takes less than one minute and it can be played anywhere there is flat grass or indoor space. You can find people playing Knockerball bubble soccer and other Knockerball games at birthday parties, corporate events, local fairs, church functions, bachelor parties, camp outings, or just because they want to have some fun.