Advantage:                                                        

1. With ring TPR, high elasticity, environmental protection and no irritation.                        

2. Pure aluminum alloy material, base with 2.0 MM thickness tube wall, and with solid aluminum cross welding, common on the market is the middle of the 1.2 MM on the four feet with hollow aluminum circle welding, easy to deformation, four feet uneven after-sales very much.                                            

3. Use the butterfly nut to fix and avoid shaking. Ordinary aluminum nuts are commonly used in the market.                                                  

There are a lot of PVC in the market, and the cost is only half of the rubber.                                                          

5. The product has obtained the quality supervision and inspection report of national rehabilitation equipment quality supervision and inspection center. Note: this product is suitable for obese people. This product is not recommended by a small person.