This Hop Ball is the very best quality in hopping balls!  Made from the super strong, yet soft latex-free vinyl material for long lasting use and durability.  Great exercise product for indoors and smooth safe outdoor surfaces.  Promotes children’s body coordination, balance, lymph circulation and provides a fun work out while hopping on the ball.  Special patented handgrip safety handle.  Maximum sustainable weight up to 600 lbs based on the size of the ball.  Inflates with a hand or foot pump.