1. Material: TPR+PP 2. Comfortable non-slip handle 3. Thickened high strength spring 4. Wear-resistant rust-free, not broken 5. Rotation adjustment, easy to grasp the strength 6. Increase the range of adjustment, the whole crowd applicable 7. Applicable scenes: fitness equipment, sports 8. Help relieve hand muscle pain and strengthen finger flexibility 9. Size: 15x11cm 10. Unit weight: 0.2kg
