LIGHTWEIGHT & PORTABLE: Lightweight and compact design allows you to take the tennis trainer anywhere for convenient training anytime. Ideal for indoor and outdoor use, this equipment helps reduce the need to pick up balls during practice. SOLO TRAINING: Perfect for individual practice, this tennis trainer enables solo play without requiring a partner. Improve hand-eye coordination and endurance through independent training sessions. WATER INLET & OUTLET: Features a dedicated connector for easy water filling and draining, addressing common issues like insufficient filling or difficulty pouring. Anti-slip pads on the base enhance stability during use. 3 REPLACEMENT BALLS: Includes three durable, high-quality wool balls connected with high-elasticity rubber bands for consistent rebound performance. Designed for long-term use and suitable for repeated impact training. EASY TO SET UP: Simply open the top valve and fill the base with water or sand to add weight. Attach the elastic cord and begin hitting the ball, which returns automatically after each strike. Suitable for children, adults, and beginners alike. PRODUCT DESCRIPTION Tennis trainer set with 3 rebound balls designed for solo practice, ideal for beginners, adults, and children. PACKAGE INCLUDES: 1 x trainer base 3 x training balls FEATURES: Anti-tangle, durable cord Anti-slip base skirt Water inlet and outlet INSTRUCTIONS: 1. Fill the base with water or sand. 2. Secure the tennis ball to the base with the elastic cord. 3. Hit the ball slightly upward to ensure smooth rebound and prevent ground contact from the cord. Enjoy your training!