The balls are from Tretorn, a brand specialising in the production of sportswear and sports accessories. The tennis balls are made of durable rubber and woven felt and therefore have a consistent and superior bounce provindg a tactile touch so that you can perfectly control the ball.
Due to the bright coloured fluorine felt, the balls are clearly visible on the tennis court. Due to the special Tri-Tec technology, this tennis ball consists of a 3-layer construction. The special sealed diaphragm ensures that the gas filling lasts longer, giving the tennis ball a longer life-span. The rubber core is very thin making the tennis ball react quickly to your tennis stroke.