Tennis Training Base Tool Exercise Self-study Rebound Ball Baseboard Set

Specification:

Features:
Can be loaded with water sand, easy to pour and pour water, light, durable.
Trainer base,can be used with tennis line training tennis.
After the pot of water, the weight of the base is about 1.5kg.
Unrestricted venue, moderate exercise, do not have to pick up the ball frequently.

Usage: 
The rubber plug can be pulled out, which can be put on the water or sand, tied with a line of the ball can be used.

Package included:
1 x Tennis base
1 x Tennis ball
1 x Rope