... RedProduct Highlights: Overall injection molded ABS material, durable, lined with foam padded, has a good airtight;The noise reduction rate ... shipping, aircraft, construction sites, downtown, etc. from the noise, with the earplug use .Red part injection molded ABS plastic, impact ... rotated 180 °, be free to adjust the fit earmuffs with skin perfect fit .Tenacious Earmuffs Details of the plan :Wearing ...