Item Name: Self-study Rebound Tool Baseboard Ball with Rope Tennis Trainer Practice. Color: BlueBase Size: approx.15 * 20 * 5cm / 5.9 * 7.87 * 1.96 inchElastic Ball: approx. 1.2m / 3.39 ftMaterial: Plastic + RubberElastic Bandage: 4 - 8m / 13.12 - 26.24 ftBall Seat Size (Dia): approx. 6.3cm / 2.48 inchPackage included: 1 x Tennis Training Device *Please make