| 摘要 |
A training tool ( 1 ) for ball games allows an optimal return of the ball itself and a remarkable use flexibility. The tool includes a frame ( 2 ) defining a rebound area, ground anchoring apparatus ( 5 ) that anchors the frame to the ground, the elastic members ( 6 ) which define a surface stretching on the rebound area, and positioning apparatus ( 8 ) which permits adjusting the frame to a desired inclination. |
