The butterfly practice partner 30 table tennis robot will work great whether used at home school or in the club the robot can produce topspin backspin and sidespin with up to 8 different spin variations to help you improve your performance the control box is truly user friendly and the ball feeding unit has been manufactured from alloy with resistant rubber to stabilise the ball direction the robot can serve 30 to 90 balls per minute and place them to one point and to alternate parts of the