2. The classification of cherries mainly depends on the diameter of the fruit, among which "J" is used as the classification standard of cherries. This classification is generally used in countries that produce cherries, such as Chile, New Zealand and Australia. "J" is pronounced as "hook", which generally means cherry with a diameter of 26-28 mm, Xj, sj and jj are generally pronounced as double hooks, the diameter of this cherry fruit is between 28-30mm, and G, P, xsj, sxj, xxxj, ssj and jjj are generally pronounced as three hooks, and the diameter of this cherry fruit is between 30-32 mm. The diameter of this kind of cherry fruit is more than 32 mm, and the cherries less than J grade are called xl and L. The diameter of xl cherry is about 24-26mm, and the diameter of L cherry is about 22-24 mm ..