In America the Mack's Pillow Soft Kids Size are the original and top selling mouldable silicone children's earplugs and accommodates all kid’s ear sizes. All Mack's Pillow Soft silicone ear plugs are doctor recommended to: • Seal out water. • Help prevent swimmers ears. • Provide protection after surgeries. • Help relieve flying discomfort. • Protect hearing from loud noises. • Provide non-toxic, non-allergenic protection .