3M™ E A R™ Classic™ Ear Plugs, 1 Case of 2000 Inversion Tables Accessories Adds extra protein to diet Color:Yellow Adds extra protein to diet Laser engraved dial face provides unmatched accuracy * Recessed dial face and high contrast red pointer increase visability and reduce parallax errors * Lifetime calibration warranty * New 5 leg stand provides improved stability and maneuverability * Simple color changes give the aneroid a new look * Latex and mercury free * Classic™ Plus earplugs are slightly longer than regular E A R™ Classic™ earplugs to fit deeper into the earcanal and provide higher noise reduction Reusable Pillow Pack helps keep earplugs clean when they are not being worn