With new keading technology360 degree rotate design 3D roller design the whole body skin. Arms: Scroll to the armpitto remove excess fat---arbitrary wear your faorite sleeveless jacket Chest: Scroll to the center of the chest from armpit from the bottom to the middle of the cheset---push to increase bust and shaping Waist: Scroll up and down the sides of the waist to the middle--shaping charming waistline Leg: Scroll to the inner thigh to make you confident enough