Wilson A9306 ASA Series Softball (12-Pack), 11-Inch, Optic Yellow COMPRESSION CONTROLLED CORK: Exclusive to Wilson this is softball gives you the traditional feel you need at the price you want SUPER SEAM TECHNOLOGY: 20% higher seams give pitcher extra control on the mound while fielders can locate the ball quicker and throw more accurately Frequency Matched Optic Yellow Synthetic Leather Cover Cor .47 / Comp. 375 lbs ASA Approved