Features: Suitable for beginners who want to self-study tennis skill. It provides independent platform for training without relying on others. The rope make form highly elastic materials ensures more realistic Rebounds effect of ball and provides sufficient challenges. By continuously using this trainer, one can improve reaction speed, hand eye coordination, and hitting accuracy, enhancing control over ball. This trainer is equipped with a stable base that can hit the rackets towards base and safely bounces back, providing a continuous training experience. It is easy to carry and install. The length and tension of the rope can adjusted as needed to adapt to different hitting techniques and training place. Specifications: Material: plastic+rubber Style: Base 1+High Elastic Tennis 1/Base 1+High Elastic Tennis 3/Base 1+High Elastic Tennis 6 Color: Orange/Blue Size: As shown in picture Package Includes: 1set Portable Tennis Trainer note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.