B&K Mueller Black Cross: 1/4", Threaded - Malleable Iron, Class 150 | Part #521-001 Black 521-001

Penn Championship is America’s #1 Selling Tennis Ball and represents the standard by which all other tennis balls are measured. It features a controlled fiber release for consistent nap, natural rubber for consistent feel and reduced shock and interlocked wool fiber for longer wear. Penn Championship is the Official Ball of USTA Leagues. The Champi... moreonship Line provides quality play every time you hit the court.