This waist builder designed with flexible, durable and eco friendly material.
When you sit on it, your body will improve your posture naturally and feel comfortable.
Also you can build core muscles of your abdominal when swing your waist on it.
When you sit on it, your body will improve your posture naturally and feel comfortable.
Also you can build core muscles of your abdominal when swing your waist on it.
Designed for improving your balance and coordination, also you can swing on the board for fitness.
