Fast Track Tennis Ball Type_Doubles Knee-high design sits just below

Knee-high design sits just below the knee for snug and smooth compression up the calf muscle

Velcro straps secure the bag to the frame

Injection-molded Sugarcane EVA midsole for sustainable comfort

45-49 inches in height

and Women's Squash Association

Fast Track Tennis Ball Type_Doubles Knee-high design sits just belowGet on the right track to reach your potential. Introducing Fast Track Tennis, a patented hardware and software that makes learning and practicing tennis easier, faster and more fun! This solo training device gives players endless repetitions to accelerate learning and improve their game. 20 real ball feeds per minute to a consistent spot means over 1,000 hits in an hour with zero time wasted picking up balls. The feedback system includes a portable