Earplugs, Pillow Soft, Kidz Size Waterproof! No. 1 selling kids size. Doctor recommended to help prevent swimmer's ear. Swim, bathe, loud events, flying discomfort, etc. Doctor's choice for sealing out water, reducing noise and for use with ear tubes. Noise Reduction Rating: 22 decibels (when used as directed). The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (high numbers denote greater effectiveness). CE listed. Made in USA.