Remember that many people carry Staph infection without having any symptoms. While 25% to 30% of the population may be colonized with Staph, only about 1% of people have been colonized with MRSA.
According to mlb.com, baseball bat's cannot exceed 42 inches, or 106.68 cm (1 inch = 2.54 cm). From Wikipedia, the average mass of a baseball bat is 0.96 kg. You can check the mass by weighing an average baseball bat, then dividing that number by 9.8 m/s^2. If you need any more help, don't hesitate to ask! According to mlb.com, baseball bat's cannot exceed 42 inches, or 106.68 cm (1 inch = 2.54 cm). From Wikipedia, the average mass of a baseball bat is 0.96 kg.
The baseball bat is 1-inch shorter, but has a larger diameter barrel than the softball bat. Same make bat in youth (top), softball (middle) and adult baseball (bottom) models. Barrel diameters for the youth and softball bats are the same, and the adult baseball bat is wider.