Official Ball of U.S. Bubble Soccer Association. Jump inside a big inflatable bubble and have at it! Leave it to those crazy Europeans to invent a sport that is spreading from Europe — a mashup between soccer, human bowling and dodgeball. Get into a friendly game and see what everyone is talking about. Each ball is made from high-quality, durable 0.8mm PVC plastic. Battle Balls is the ONLY seller of the Battle Ball Bubble Soccer brand on Amazon. Other sellers have attempted to list under Battle Ball’s name, however the products are NOT the same product, nor do they carry the same quality guarantee of the Battle Ball brand.