... available3. Color: clear, red, pink, yellow, green, blue4. Zipper: Zipper IT TM Germany 5. Accessories: Instruction, repair kit, glue, lubricationPutting fresh ... the riders can stay inside for longer periods of time.HOW MUCH TIME CAN YOU STAY INSIDE?- 15-20 minutes rides when ... practice to have good balance, and the trick is to hold onto the sides of the ball, as you lean forward ...