Tennis Training Practice Exercise Trainer Ball Kid Aid Youth Self-study Tool

Description

whyfeing
Tennis Training Practice Exercise Trainer Ball Kid Aid Youth Self-study Tool
Specification:
100% brand new with high quality
Material: Rubber + Woolen
Elasticity: Approx.135cm
Weight: Approx.83g
String Length: Approx.4m
Promoting the amount of deformation: 0.20-0.25N
Package Included:
1 x Training Ball
1 x String
Note:
Please allow minor error due to manual measurement.
The colors may be a little difference for the different monitor display.
On Jul-09-21 at 03:10:48 PDT, seller added the following information: