characteristic: 100% brand new, of high quality Special Table Tennis: Display batting average and spin level Connecting axis: ensuring consistency of ball trajectory Buffer spring: Rapid rebound upon hitting the ball, ensuring continuity Foundation: Fixed position to meet different practical needs Material: PVC Color: As shown in the picture Maximum fixture size: approximately 5.5 centimeters/2.17 inches, with a standard ping-pong table thickness of approximately 4 centimeters/1.57 inches. So it is suitable for most table tennis tables type 1. The suction cup base is straight and can place the robot at any point on the table. Suitable for practicing hitting at the central table. 2. The clamping base is straight, which can fix the robot on the edge of the table, suitable for close table touch practice. 3. The suction cup base is goose shaped, allowing you to place the robot at any point on the table. Suitable for practicing hitting at the central table. 4. The clamp type base is goose shaped, which can fix the robot on the edge of the table and is suitable for long-distance tabletop touch practice. Package includes: 1 set of table tennis coaches