1. Material: rubber, PP, fiberglass
2. Specifications: 38cm in diameter and 3.0cm in thickness
3. Net weight: 300g
4. Features: fiberglass reinforced plastic, no deformation under strong pressure, moderate elasticity, comfortable and non-slip, environmental protection without odor
5. Function: skinny hips, skinny legs, beautiful breasts
6. Suitable for: most sports people