This inflatable gym roll can be used for so many fun and healthy activities.  Inflate it to a firm pressure for bouncing, riding or balancing for older kids; or make it a little softer for infants and toddlers, or to use as comfy resting spot for reading. The fully inflated roll measures 80 cm x 40 cm (about 32" x 16") and can hold up to a 100 kg (about 220 lbs).  Inflation requires a sports-ball type needle.