Distributions from AAA From TaxAlmanac, A Free Online Resource for Tax Professionals Note: You are using this website at your own risk, subject to our Disclaimer and Website Use and Contribution Terms.
As of 2008 the circumference of a regulation size baseball is between nine and nine and a quarter inches which converts to between about 7.3 cm and 7.5 cm in diameter according to the official rules of Major League Baseball (MLB).
Stitched by Hand. A baseball begins with a small, spherical core of cork and rubber encased in thin layers of rubber. Hundreds of yards of wool yarn are machine-wound around this core, followed by more than a hundred yards of white cotton twine.