How to Make a Tennis Ball Boxing Hat and Tutorial

[Mike_Erm]

One of my guys did this instructional.
It might help some of you young guys with training for eye hand coordination. You might want to think about throwing it in youre routine.
https://www.youtube.com/watch?v=Rd7xm0UB_oc

[ShoulderRoll]

The famous Kostya Tszyu tennis ball drill.