Umpires, pitchers, managers...everyone can use this "magic mud" created in 1938 by Lena Blackburne, a third base coach for the old Philadelphia Athletics. Soon the entire American League and the National League were using the amazing gunk.
• Used by Major League Baseball (MLB) and Minor League Baseball (MiLB) teams.
• Material: Cured & Aged Mud
• Sizes Available: 4 oz. (Personal Size) and 16 oz. (Institutional Size).
• All natural and MADE IN THE USA