Uwin Stage Three Red Tennis Balls are low compression balls designed for stage 3 and have a diameter of 75mm (2.9in).
Pressureless tennis balls are 75% slower than the standard balls giving players more time to move into position to hit the ball and develop the correct strokes.
These are a great choice for kids and adults who are new to the game giving them more time to move into position.
The two tone colour of the balls helps concentration and ability to see spin development.