The exercise is suitable for the training of the thighs and glutes.
Place the sandbag symmetrically onto your neck and hold it on both sides. Stand in a straddle of shoulder width or little bit wider, push your hip backwards and squat as if you would sit down on a chair, more or less to the point when your thigh is horizontal. Then go back to the starting position and go on tiptoes. During the exercise your back should be straight, your torso should not lean forward and it should not be hyperextended either to prevent the overburden of the spinal cord. When squatting your heels should stay on the ground.