The product is a set of four 12" fast pitch softballs designed for tournament play by the brand Dudley. Made of leather with a compression hardness of 375, these softballs feature a .47 COR and are suitable for high school and college level play. They are optic yellow in color and come with a polyurethane core, making them ideal for competitive softball games. Made in China, these softballs are of top quality and are sure to enhance any team's performance on the field. *READ* - 2 of the balls are showing signs of storage (small cracking) See Pictures! Still great for practice balls.