Tennis Self-study Training Machine Racket Ball Trainer Single Tennis Practice Base Elastic Tennis Exercise Sport Training Device

1. With a diameter of 33cm/12.87in, this one-piece integrated water injection base is enlarged and stable.

2. The super large suction cup design is small and exquisite. It does not occupy the space and it is stable and does not fall. And the structure is stable.

3. Containing 20% wool outer layer, which is especially suitable for hard ground use. It has low inflation and ball speed is slower than professional one, which is suitable for beginner training.

4. The ball adopts waterproof technology, which can be used in moisture and wet ground after rain.

5. Applicable venues: hard, concrete, training-level venues.