The original and #1-selling moldable silicone earplugs!Exclusive formula is made with hypoallergenic, non-toxic silicone putty. Snore proof and waterproof. Can be used to prevent swimmer’s ear and can protect hearing from loud noises. Great to use while swimming, sleeping, studying, bathing, work, travelling, attending loud events, help with flying discomfort and more! Noise reduction rating of 22 dB.