Markwort The Perfect Circle Pitcher's Training Aid Size:12"-14" Circumference The set includes four progressive

The set includes four progressive weights—9 oz

Withstands damage from infield dragging

Great umpire training tool for learning the strike zone

without the hassle and residue of other traditional tapes

Optic yellow leather cover

Markwort The Perfect Circle Pitcher's Training Aid Size:12"-14" Circumference The set includes four progressiveInstant feedback without the need of a coach watching Elastic band holds a square flap that fits around the upper thigh and extends out a few inches into the pitcher's release zone When practicing windmill pitches for softball, the arm should touch the flap every time. An arm position too far from the thigh at the bottom can cause many problems, including control problems, lack of speed, undue stress to the shoulder socket and more Teaches proper