MaxMaxi Dual Grip Resistance Training Pilates Circle Fitness Ring 15-Inch Core workout, abdominal, thigh, leg and arm toning. Strengthens posture and mobility One of the best upper thigh exercisers for women due to the resistance it places on the inner and outer thighs. Improves muscle tone of the upper inner and outer thighs, arms, lower body, upper body and core. These rings are perfect for travel because they are almost flat, lightweight and do not take up a lot of volume 15 INCH diameter with NON-SLIP foam padded grips. Tone your arms, thighs and chest today! Toning rings or Pilates Rings as some call them are becoming very popular in the fitness community due to their versatility, portable design and effectiveness Traditional fitness circles only have pads on the outer sides of the ring. MaxMaxi's toning ring has pads on the OUTSIDE & INSIDE of the ring for a more balanced, effective workout. The ring strengthens and tones your body in only a few minutes each day while increasing the effectiveness of Pilates training