Function | - Large spiky dimples on one side (for standing), very small dimples on the reverse side (for sitting).
- Durable & safe: Made from EU approved phthalates free pvc & contain no heavy metal elements. Helps improve balance, coordination and flexibility; Good for active sitting, muscle strengthening, and joint stabilization.
- Instruction: Insert the needle of the pump into the tiny hole for inflation; Insert the needle only without the body of the pump into the hole for deflation. Find the hole on the 4th outer ring--One spiky dimple is replaced by that tiny hole
| Advantages: | 1.Good quality and competitive price.
2.Widely used; 3.Elegent looking and comfotable usage. |