Ergonomic Design: The most popular yoga circle, designed according to the curve of the human body, is used to massage and relax muscles, strengthen fascia, improve posture, and strengthen core. Works on every flexion of the human body, helps with precise posture, improves bumps, flexes the spine, relieves back and leg pains.Multi-function: Not only can tighten the thighs, but also can lift the legs to stretch the core and tighten the arms. You can build stronger muscles in your abs, legs, arms, chest, incline, and butt. Ideal for those suffering from disease-related pain, strengthening hip osteoporosis, or doing hip abduction exercises.Small and Portable: Portable is very suitable for travel and will not take up much space. You can carry it in your pocket, hide it in a closet or hang it anywhere. Great for working out at the gym at home or while traveling.Any Age Group: Ideal for pregnant women and seniors who want to build muscle strength, improve body awareness, endurance, balance, correct posture and all other unhealthy people. Push yourself to a stronger body without extra equipment at home or in the gym.Easy to use: Whether working in the office or watching TV at home, it can help strengthen the muscles of the upper limbs and prevent or relieve pain. Rings strengthen and tone your body in minutes a day while enhancing your athletic performance.