The product is a set of four official league softball balls, with three from Rawlings and one from Dudley. These 11-inch fastpitch balls are designed for practice and training purposes, featuring a compression hardness of 375. Made with composite leather and a cork core, these yellow balls are weighted and have a raised seam for added performance on the field. Perfect for improving your game in the sport of softball, these high-quality balls are suitable for both recreational and competitive play.