NanoPro Back Supporter. Fits Waists Up to Maximum 42″. Stimulates acupoints in lower back. Enhances microcirculation to help relieve tired muscles and inflammation. Provides added lower back support. Improves posture to help reduce stress on muscles. Soft and lightweight for 24-hour comfort. NanoPro products contain an exclusive ceramic compound developed through NanoScience research, to reflect a person’s Biological wavebands back to them. This creates a subtle thermal effect which has been shown to enhance micro-circulation and cellular metabolic function and helps remove built-up toxins and stimulates acupoints along the body’s energy maridians.