Earplugs, Value Pack The original silicone putty. No. 1 doctor recommended brand. Snore proof. Water proof. Swim, sleep, study, shower, work, travel, sports, loud events, flying discomfort, etc. Helps prevent swimmer's ear. Noise Reduction Rating: 22 decibels (when used as directed). The range of noise reduction rating for existing hearing protectors is approximately 0 to 30 (high numbers denote greater effectiveness). Made in USA.