Callaway Hex Hot Golf Balls, 12-Pack: * Trionomer cover: this unique cover blend of 3 ionomers maximizes ball speed for every club in the bag * The tri-blend cover also promotes low drive spin for longer, straighter drives * Fast tech mantle: designed for the golf ball to jump off the face and convert its energy into more distance * Highly resilient and built to be the perfect intermediate layer between the high technology core and the resilient Trionmer cover * HEX Aerodynamics: our proprietary surface pattern has been re-engineered to produce even better low-speed lift for more distance while maintain the stable, penetrating ball flight that"s been a trademark of HEX * 2-year limited warranty * Model# 641485012