Wilson Golf Baller Box. Wilson Staff Model golf balls in a custom labeled box. Great gifts for tournaments and giveaways to showcase your brand. Staff Model is a true Tour-caliber, 4-piece urethane golf ball that delivers unmatched precision, speed and consistency. Box comes with white top and red bottom, with a 4.25 diameter center decoration. V-CORE ADVANCED PERFORMANCE: A unique core composition magnifies energy to generate maximum velocity off the club face for greater distance performance. This factory will be closed July 2nd- July 12th. Please note no orders will be processed during this time. Cover: Ionomer; Cores: polybutadiene-based Rubber compound; Covers: surlyn (DuPont) Ionomers.