Junior Tennis Orange Ball is a great way for players to continue their progress from Mini Tennis Red and is for players aged 7+. It is played with shorter rackets, softer balls and courts are bigger and wider than the red stage but still smaller than full-size tennis courts allowing players to develop a rounded game whilst learning a range of techniques and tactics. See:- https://www3.lta.org.uk/LTA-Mini-Tennis/Orange/Mini-Tennis-Orange/ Junior Tennis Green Ball is a great way for players to continue their progress from Mini Tennis Orange. It is played on a full size tennis court, with bigger rackets and balls which are a little softer than yellow balls. It’s the next stage before moving on to full compression yellow balls on a full sized court and helps players develop and improve all aspects of their game. See:- https://www3.lta.org.uk/LTA-Mini-Tennis/Green/Mini-Tennis-Green/ For more skilled players they will advance to yellow ball.