... ready, you can walk, jump, roll and float on water now!How much time can you stay inside ?- 10-15 minutes ... ages.FILLER UP!Putting fresh air inside the balls is easy.Open up the air intake valve and insert ... balls, you can walk or actually, run on the water, that is...With a little practice.3. A really great way ... to practice to have good balance, and the trick is to 8. Hold onto the sides of the ball, ...