Penn Extra Duty Tennis Balls (Case 24x) Size:OS The 2nd generation Avenge Pro

The 2nd generation Avenge Pro Hybrid Flared delivers ultimate power and raises the bar for BBCOR

Mid-Loaded Barrel: slight end-load

and feel with specific composite handle stiffness and custom-molded tapers

water-resistant pro composite cover

Penn Extra Duty Tennis Balls (Case 24x) Size:OS The 2nd generation Avenge ProPenn Championship is Americas #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. It is USTA and ITF approved and is available in extra duty felt or regular duty felt. The Championship Line