ADORED INTERNATIONAL 12pcs Tennis Balls Sports Outdoor Training Play Fun Cricket Beach Dog Ball Game All our balls are from the major manufacturers, such as Head Tour, Head Radical, Slazenger & many more. These manufacturers make some of the best quality and most expensive branded balls on the market at the moment. These are all used balls, and so will naturally have a lower pressure than brand new tennis balls but they are still in really good condition! These balls make excellent dog toys & training aids, as they are made from good quality material from major manufacturers, and so they are much more durable and longer lasting than the cheap multicolored low quality balls sold in pet shops and supermarkets.