Lay face up on a stability ball after you attach a chord to an immobile object or door behind you then take a handle in both of your hands keeping your hands above your shoulders and palms downward facing your knees, lift one foot off of the floor, with your arms outstretched at a 90 degree angle from your body and straight in front of your face slowly bend your elbow keeping your elbow in alignment and in front of you, straighten your arm out and contract your tricep (back of the arm) and then return to the start making sure to do the same amount with the other arm until the set is complete.