What do you mean by st release in the clubhouse?
It means that the club will push and release. ST means "shiatsu", which is Japanese shiatsu technology. It combines the softness and hardness of muscles to help people relax muscles, improve blood circulation and reduce tension. The st release of the club refers to the release of the club hand. Shiatsu is the word "finger" and "pressure" from Japan, which was founded by Nobukuro in the early 20th century.