FMX/BMX/MTB Airbag are 2 kinds of inflatable stunt airbag. Our inflatable air bag is mainly used as protection land for MTB, BMX, FMX, and skiing, etc. The inflatable big stunt bag has two zone impact-absorbing systems, each with its own dependent external blower system.  Both zones have several air valves which allow you to adjust the Zones independently and precisely. The top zone is a good soft to absorb the impact of falling and the separate top chamber with the ground to protect the air bag and people from touch the ground.