ProNine 12 inch slowpitch softballs 44 COR, 375 LB compression (multi-packs) bundled with Covey Sports bag. Great for men's, women's, or kids softball games and practices. ProNine 44 COR/375 LB compression balls are designed hit hard but to not dent your bat when hitting. Ball has medium seam height, synthetic tacky grip cover, and a solid polyurethane core. Comes with versatile Covey Sports bag to keep your softballs together when not being used!