Ring. Adjustable. No Drugs Needed Instruction Book. Targets Acupressure Points. Medium 16mm Diameter Inside Ring Helps Create a Calming Effect. Large 18mm Diameter Inside Ring. Small 14mm Diameter Inside the Ring Drawstring Bag. No Sprays Needed. Uses Ancient Technique of Chinese Acupressure. The Rings Can Be Adjusted 1mm to 2mm to Fit. Np Patches Needed. Activates Pressure Points Located on The Small Finger. the Original Acusnore Anti Snore Ring | Living Social