Mack's Silicone Earplugs for Adults are ideal for: swimming, sleeping, studying, showering, traveling, water sports, and loud events. They prevent outer ear infections (swimmer's ear). Noise reduction level of 20dB. Hypoallergenic and non-toxic silicone. Reusable up to 5 times.
Clean and dry the outer ear. Mold the earplug into a ball shape. Place the earplug in the ear opening and flatten it to prevent air from entering - do not insert into the ear canal, just cover it. To remove the earplug, press behind the ear.