igh Quality Rubber Woolen Training Tennis Balls Trainer Tennis Ball with String
It takes up small space, and can be used on outdoor or indoor, easy to carry.
It can have the same effect with the original one.
It is used for tennis traning.
Advancing deformation: 0.23-0.27in
Springback: 2.5m/8.2ft free landing
Springback: approx. 1.4m/4.59ft
Material: High quality rubber and woolen