Description: The tennis training device is designed as a hollow structure kettle. After training, you can open the mouth of the bottle and pour out the water or sand inside. At the same time, a handle is added to the side to make carrying more convenient and comfortable. The tennis self trainer is equipped with high-quality elastic ball with elastic string. When you hit the ball, the tennis ball will rebound again by the traction line to achieve the effect of repeated strikes. So you don't need a training object to meet your daily training needs. It is constructed of plastic material. The length of the base is 24cm, the width is 16cm, and the height is 5cm. The length of the ball with rope is 360cm. The tennis practice rebounder can be used for outdoor training, such as parks, tennis courts, back gardens. It will be your companion to spend a pleasant leisure time. Item Name: Tennis Trainer Material: Plastic Usage: Tennis Training Features: Rebound, Portable, Cozy Grip Size Details: Base: 24cm x 16cm x 5cm/9.45" x 6.3" x 1.97" (Approx.) Ball with Rope Length: 360cm/141.73" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Ball Base 3 x Tennis Balls with Rope