Altering the length of the twin durable nylon straps (which can be attached to either your arms or your legs, depending on the exercise) and-or changing the position of your feet (when standing up) can help to vary the resistance
Can help improve core stability, flexibility and works on strengthening and toning all muscle groups
Recommended for both beginners and athletes and can be used indoor or outdoor
Comes with door anchor so it can be hooked up to any overhead structure that safely supports your weight