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