Features: 1, the Special Pingpong: Showing Hit Rate and Degree of Rotation; 2, the Connecting Shaft: Ensure the Consistency of the Ball Trajectory; 3, the Buffer Spring: hitting the ball quickly Rebound to ensure continuity; 4, the Base: Fixed Position to Meet Different Demands of Practice. Application and Function: 1, To Help Practitioners Improve the Accuracy of Self-discipline, to Avoid Dry Sense of Unarmed Training Time, and It can Greatly Shortened the Training Process of Athlete Stereotypes Hitting Actions , Especially Good for Forehand and Backhand Stroking Ball "Dynamic Stereotype" Training. 2, To Help Beginners Master the Rotation of Balls Resulted by Strokes on Different Parts and Directions. 3, To Help Make Comprehensive Training Plan of Attacking and Foot Steps Movement by Fix the Multiple Robots on the Different Points of the Table. Specification: Color: black Material: PP Feature: Stability, Rapid rebound, Convenient training Size: Table sucker diameter 6.5cm(2.6in), lenght maximum 30cm(11.8in) Weight: Approx. 162g Package List: 1 x Pingpong Trainer