Pro Penn Marathon XD High Altitude Tennis Ball Case

Long lasting play is now possible thanks to the Pro Penn Marathon High Altitude Extra Duty Tennis Ball, available in a convenient case for teams, clubs, and individuals. The longest lasting Penn ball to date, this one features Encore technology to give the ball 22 percent longer life while the LongPlay felt can withstand any punishment. These tennis balls are for players above 3500 elevation. This case of Marathon High Altitude Extra Duty balls contains 24 cans of three balls each for a total of 72 balls designed for maximum playability on outdoor hard courts. This ball is approved for play in both USTA and ITF competition. The Pro Penn Marathon High Altitude Extra Duty Tennis Ball case contains 24 cans (3 balls per can- 72 balls per case). For more information on tennis balls, check out the following blogs: Every Different Type of Tennis Ball Finding the Right Tennis Ball Machine for Your Game Note: This item has an additional shipping fee of $10.95 and ships ONLY to non-PO Box addresses within the Continental United States. We recommend selecting Standard Ground Shipping for orders containing pressurized tennis balls because Express Shipping risks depressurizing the tennis balls.