Rawlings Large Rock Rosin Bag (poignée collante)

This large bag of Rosin is design specifically for the pitcher's mound or on-deck circle.

This 100% genuine rock rosin comes in a big professional-style cloth bag. This Rosin will most definitely enhance a tacky grip.

The rocks can be crushed into powder by placing the bag on the ground and tapping it with the end of a baseball bat.