The WundaCore Resistance Ring is a patented, fully redesigned exercise ring. It's strong but flexible, with curves exactly where you need them to  create core connection in all bodies, all exercises, all of the time. Get A Deep Core Workout - Activate your core with our exercise ring. Its intuitive curves and strong tension load let you know where to grip and how while you do squats, dips, lifts, curls, and twists. Bring Local Muscles To Life - Discover and stimulate the small muscles responsible for supporting your breathing and posture. With our yoga ring, you can effectively target these muscle groups. Safe & Durable - Made of pure platinum-cured, professional-grade silicone, our Pilates ring circle will last for years! It has no BPA or BPS, won’t harbor stains or odors, and is dishwasher safe. Always A Perfect Fit - Our contoured workout ring is sized for all bodies. No matter your height or weight, you’ll be able to easily stretch, squat, and maneuver your limbs around the loop.