1. Material: zinc alloy
2. Process: electroplating
3. Dimensions: 8.3 x 3.5 cm
4. Net weight: 30g/piece
5. Lightweight and easy to store
6. Comfortable hand feeling, rebound in seconds after strong pressing
7. Double ring design, more practical
8. High-quality zinc alloy, anti-corrosion, wear-resistant and not easy to fade