Product Description The Dunlop ATP Championship Extra Duty Tennis Ball Can is officially endorsed by the ATP World Tour and this mid-range ball is ideal for club and recreational players. The Max Core and Durafelt HD Cloth make this ball durable and suitable for play on hard courts. 3 balls per can, 6 cans per pack. Additional Details and Features ENDORSED BY ATP WORLD TOUR : The Dunlop ATP Championship Extra Duty Tennis Ball Can is officially endorsed by the ATP World Tour and this mid-range ball is ideal for club and recreational players EXTRA-DUTY DURABLE FELT : Extra Duty Felt makes this ball ideal for outdoor Hardcourt play