Senior Single Tennis Training Base And Tennis Ball Seat

Store Description:
Fill the base with water and it instantly becomes heavy enough to hold the unit in place. Non-skid pads underneath help keep it stable.
Unwrap the cord, hit the ball as hard as you want, and the ball bounces back to you. -The harder you hit the faster the ball is rebounded to you.
Rubber cord is 15 feet long and stretches to 30 feet for hard hit balls.
To shorten the rebound, wrap some of the cord around the base to your desired length
A great device to practice your strokes, develop a faster swing speed, or simply warm up.
Great for driveways, garages, basements, or bring it to the court with you!
Have fun exercising this summer with this new tennis helper!
Features: 
Anti slip hole molding design, can fill in the heavy objects to train. 
Using PE environmental material and High temperature forming technology to make the base more durable. 
Semicircular ball groove structure, make the ball easily to be attached. 
Widing towing rope groove design, which is useful for its sort out. 
Portable handle design, giving you a comfortable using experience. 

Specifications: 
Material: PE 
Product size: approx. 245*205*70mm/9.6*8*2.75'' 

Note: 
Please allow 1-3mm differs due to manual measurement. 
Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.