1. Material: rubber 2. Applicable to: golf clubs 3. Specifications: Standard number R58 or R60 4. Made of high-quality soft rubber material, strong toughness, good elasticity, and easy to absorb shock waves 5. Surface pore design, breathable and comfortable, not easy to fade 6. Product size: 270 x 27 x 15.5mm 7. Weight: about 50 grams 8. Note: Only the protective cover will be shipped, nothing else!