YUEBO BUMPER BALL- Made of 0.8mm ultra thick PVC, non-toxic and odorless. Featured with excellent wear resistance and tear resistance. Design with 7 fasteners a row, better sealed for long-term use. SAFE DESIGN- YUEBO bubble balls supports weight to 250 lbs. The bubble ball design with 2 handles and 2 adjustable shoulder straps which make it more durable and safer to play. EASY TO INFLATE/DEFLATE- You can inflate/deflate the bubble balls with the electronic air pump, compressor or air mattress pump within minutes.(PUMP NOT INCLUDED) SIZE GUIDE- Zorb Ball with two size for choice: 4FT/5FT, suitable for player height(3 9 -6'3')& weight(60-250 lbs)