Minimum 1 Dozen Quantity Order (Sold By Dozen) Cover Material: Elite Optic Yellow Leather Core: PU Polycore Seams: ESST, Seam Color Red C.O.R.: .47, Compression: 375 lbs. Max The preferred game ball for youth club teams. Elite Optic Yellow Leather cover offers maximum brightness, long-lasting durability and residual tact to prevent slipping on release . CoreStick keeps leather cover tight to the core eliminating wrinkles and impurities. Precision blended Polycore (polyurethane inner center/core) to reduce bat damage and bat vibration “sting” on contact. Elevated Superior Seam Technology (ESST) features 15% higher raised seams for advanced grip (red laces). C.O.R.: .47, Compression: 375 lbs. max. Minimum 1 dozen quantity order (sold by dozen).