The Marv Band 2.0 is a product used by both pitchers and hitters in baseball and softball. The improved product includes the patented Marv Handle, wrist / ankle straps, door / pole anchors and 2 pairs of adjustable bands at 10lbs, 20lbs and 40lbs. The product is designed to be adjustable from 10 - 70lbs. It also includes a pvc manual for arm care and hitting movement prep.