Earplug(safety earplug,ear protection) Use in hospital, reading, airplane, industrial producing ect. Keep away from noise EarplugSafety earplug,ear protectionCorded reusable earplugsPull the external ear backward and upward, and make the external auditory meatus flat and direct, then rotate the earplug and plug slowly.Clean the earplug with neutral soap and warm water after using.Packing: PE bag, ...