Is China's sleeve open or closed?

The traditional sleeves are split. It is also relatively long, 1 m 7~2 m, or 2 m 3 [more than 3 m in ancient times] refers to the length of one-sided sleeves ~

Now there are sleeves, which are not split, and they are relatively short [1 m2 ~ 1 m2]. Like the dance in Empresses in the Palace, sleeves are used.

Tibetan dance is also non-split, similar to sleeve style, except that sleeves can be in various colors and Tibetan dance must be white.