Specification:

Features: It is used for tennis training. 

Advancing deformation: 0.23-0.27in 
Springback: 2.5m/8.2ft free landing 
Springback: approx. 1.4m/4.59ft 
Material: High-quality rubber and woollen 

Overview:

It takes up small space and can be used on outdoor or indoor, easy to carry. 

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. 

Base specification: 23cm length*15 width*5 height 

Volume: 0.8L(can fill in water or sand)