1. Size: the diameter of the ball is about 15 cm, the length of the rope is about 78 cm2. Weight: about 100 grams3. Material: PVC4. Applicable scene: golf practice5. Function: correct swing posture6. Features: It is made of PVC material, with fluff on the surface, it feels comfortable, and the inflatable hole can be retracted into the ball by pressing the inflatable hole, without hindering movement, seamlessly connecting the edges, not easy to leak, and the shoulder strap can be freely stretched in length. With lock, easy to use and durable7. Description: bring 1 pump, random color delivery