at every 90 degree angle), 4 Extra strong hold positions, supports doors up to 209 kg (class C), depending on the width of the door (heavier weight classes will be added in the future) ...

knee bent at a 90-degree angle. Hinging forward at hips with a flat back, rest your right hand on your right knee. Each time you hinge forward, drive your knee over one toe at a time, starting ...