Sell Tennis Ball Back Base Trainer Set with Rubber Elastic Rope best price

----------------------------------Welcome to ❤Cool shadow athlete❤, ----------------------------our products are in stock, if you are not sure, please consult our customer service, I wish you a happy shopping#Tennis Ball Back Trainer; Tennis Ball Trainer; Tennis Trainer Base; Tennis Ball Base Set; Tennis Training Ball Features: 1. The base is made of quality plastic, sturdy and durable, the bonus rubber rope is highly elastic and wearable. 2. The base has a valve for putting sand or water into it to increase the weight so as to provide stable support for training. 3. The small ring on the side is for hanging band, and the concave part for placing tennis ball. 4. Easy to use and convenient for training without picking ball, lightweight and portable, suitable for many places like garden, park, etc.  5. Great accessory for tennis training, can help to perfect skills of tennis. Specification: Material: Plastic + Rubber Color: Blue Base Size: approx.15 * 20 * 5 cm / 5.9 * 7.87 * 1.96 inch Ball Seat Size (Dia): approx. 6.3 cm / 2.48 inch Elastic Force of Ball: approx. 1.2 m / 3.39 ft Elastic Force of Bandage: 4 - 8 m / 13.12 - 26.24 ft Weight: approx. 270 g Package List: 1 * Tennis Trainer Base 1 * Ball with Rope