Calmer is a small device worn in the ear to reduce stressful sounds

A truly great all-around reusable earplug

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Macks AquaBlock Reusable Swimming Ear Plugs (2 Pairs) Colour:Clear Calmer is a small deviceMack's AquaBlock Reusable Swimming Earplugs are high quality swimming ear plugs that provide excellent protection by offering a seal against water. They are made from pre molded silicone rubber and have a triple flange design, meaning that they are both very soft and comfortable. The AquaBlock ear plugs are specifically engineered to keep water out of the ears, compared to other flange earplugs which are designed primarily to block out noise. Mack's