The Zorb Ball with Inflatable Arena is a fun, competitive interactive inflatable perfect for team bonding exercises, corporate events or carnivals. The inflatable comes with two Zorb Balls, and the inflatable allows for a safe space for competitors and spectators. Use it as a game or just for fun; two people have the chance to roll into the person in an attempt to knock them down. The lightweight arena is easy to set up and has multiple zippers making it easy for disinflation. All of our Inflatable Arenas are ASTM Compliant. They are made of fire retardant, high-quality, commercial vinyl. All Inflatable Arenas are 100% lead-free. Use it inside or outdoor this interactive inflatable is fun, safe, and easy to use.