Baseball Rubbing Mud used by Major League Baseball
Usage
Before all MLB and MiLB games, an umpire or clubhouse attendant rubs six dozen or more balls with the mud to give them a rougher surface, to make them easier for pitchers to grip, and to comply with MLB Rule 4.01(c), which states that all baseballs shall be "properly rubbed so that the gloss is removed." The rubbing mud's unique feature is that it is "very fine, like thick chocolate pudding", and it has been considered the "perfect baseball-rubbing mud".