- Package Weight(g): 476.2
- Product Size(cm): 15.5x2.5x2.5
- Materials: ABS, silicone
- Waterproof: IPX6 Level
- Use the lightest color for your first time practise.
- Use it once or twice a day, 10-15 minutes each time.
- If you can keep the ball inside for 2 minutes without any difficulty, you can move to the next level.