Built-in serve, automatic serve contact machine, It can be played by one person without manual exercise.With left and right rotation function, the ball output frequency is adjustable.Fixed-point serve,the angular position of the serve machine can be moved,automatic drop.Badminton can enhance children's observation, imagination, judgment and patience.Easy to disassemble and assemble, easy to carry, suitable for playgrounds, parks, kindergartens, lawns, etc.Specification:Material: PVC Polyvinyl ChlorideSize: 1104862cm/43.3118.9024.41inchPackage Includes:1 Piece Automatic Badminton Service Machine6 Pieces BadmintonNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you3. Wish you a wonderful on-line shopping"