Earplugs Uses Doctor's choice for sealing out water, reducing noise and for use with ear tubes. Doctor recommended to help prevent swimmer's ear. Swim, shower, bathe, loud events, flying discomfort, etc. Noise reduction rating 22 decibels (when used as directed).Directions DO NOT INSERT INTO EAR CANAL. COVER ONLY. 1. Make sure hands and ear opening are clean and dry. Shape whole plug into a ball. 2. Place plug over ear opening and flatten to form airtight seal. Avoid hair. NO! Do not insert into ear canal! To loosen and remove, press up behind ear. Discard when soiled or no longer sticky. For best results when flying, wear earplugs entire flight. Made with non-toxic, hypoallergenic silicone putty. Do not cut, break apart or elongate.Warnings Use whole earplug. Cover only. Do not force plug into ear canal. Do not cut, break apart or elongate earplugs. If misused by failure to use as directed, earplug may become lodged in ear, requiring removal by an Ear, Nose and Throat Doctor ONLY. Thi