This art form is part of the curriculum of Shaolin Kung Fu. It is very rare to find masters, however, this is one of the basics that is learned at the Shaolin Temple, and is learned very early.
This martial art is a component of the Shaolin Kung Fu curriculum. It's quite uncommon to encounter masters in this field, but this is one of the fundamental techniques taught at the Shaolin Temple, and it's learned very young.