MLB Rules
🏛️Official — MLB2.1 The Baseball (OBR Rule 3.01)
Verdict
Per OBR Rule 3.01, the baseball must be a sphere formed by yarn wound around a small core of cork, rubber, or similar material, covered with two stripes of white horsehide or cowhide, tightly stitched together.
Source: Rule 3.01
Send this to your friend — argument over.
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