Magic Circle
:The Circle is a simple "O" of sprung steel or flexible plastic. You can use the Circle standing, sitting or lying down on your front, back or side. You can squeeze both in and out on the circumference with your legs or arms for abduction and adduction exercises. You can place the contoured handles on your shoulder and push down with the triceps. You can grasp the Ring in both hands as you squeeze in with the chest muscles. You can balance the "O" between your knees to help you focus on your abs. This is surprisingly multipurpose piece of Pilates equipment that can help: