What does the plus or minus number mean on a baseball bat?

That is called the ‘drop’. Subtract the length of the bat in inches from the weight of the bat in ounces and Shape Kapseln Höhle der Löwen you get the drop, or minus number. EXAMPLE: A 34 inch long bat weighs 30 ounces. 30-34=-4. -4 is the drop of the bat.