The Dunlop Grand Prix High Altitude Tennis Ball 24 Can Case is designed for play and usage at heights above 3000 feet. Here at Tennis Warehouse, we are big fans of the Grand Prix tennis balls, using them quite often for our regular hitting and play testing. These high altitude balls are designed to move more effectively with the thinner air, so we do not recommend using them at lower or more normal elevations. Rated as Extra Duty due to their increased felt makeup which increases durability.

• 3 balls per can.
• 24 cans per case.

Note: Cases of balls do not qualify for free shipping. Cases only ship within the contiguous United States. Cases of balls ship separately via UPS Ground.