Tretorn Serie Plus Tennis Ball 4

The most perfect pressurized ball from the Swedish company Tretorn. It is made with the unique TRI TEC technology, consisting of a thin rubber core, a sealing membrane and a special soft Milliken felt. Thin rubber core improves ball control and game feel. The sealing membrane ensures the durability of the ball and the constancy of its properties. Milliken felt (a combination of nylon and natural wool from New Zealand) ensures excellent flexibility and aerodynamics of the ball.