The 4-Pack Rawlings Fast Pitch Softballs are designed for 12U play in NCAA regulation games. These yellow softballs have a compression hardness suitable for durability in fastpitch softball, featuring a COR rating of 0.44. Made of leather with machine-stitched seams, they offer raised seams for improved grip and control.  This product is part of Rawlings' softball product line and meets NCAA standards for collegiate athletic associations.