1. Buffer foam, reduce impact force, enhance elasticity, stop the ball more intimately.
2. Double-layer cloth fits, solid and breakproof, durable.
3. Convex grid surface to increase the speed of the ball.
4. Ship without inflation.
5. Process: machine stitched carbon pattern.
6. Inner liner: explosion-proof winding liner.
7. Weight: 420g.
8. Diameter: 21.5cm.
