... -lung chau,children`s entertainment city,inflatable slides,inflatable jump bed,inflatable castle,inflatable soccer,inflatable rock climbing,inflatable obstacle,aquatic ... failure suddenly and the blower off. it can prevent the air outflow, and protect the children inside.D RINGS FOR FIXATION ... failure; if pressure is too storng, please block the fan air inlet a little point.6, such as large-scale use ...