The Wilson Soft Compression Softballs are 11-inch fastpitch balls made of high-quality leather with a soft cork core. They are designed for softball players looking for a ball with a compression hardness of 375 and a COR of 0.47. The ball is machine-stitched for durability and consistency, making it a reliable choice for recreational or competitive play. With the Wilson brand known for its long history of producing quality baseball and softball equipment, these softballs offer the perfect balance of softness and stiffness for players looking to enhance their performance on the field. 11 softballs Not a full dozen