Includes 7 pairs of Skull Screws® ear plugs in metal case. Twist-in design; no need to roll down foam. Easier to use and case keeps ear plugs cleaner. Excellent NRR 30dB hearing protection. Hearing Protector Type :Ear Plug . Noise Reduction Rating :NRR 30dB. Adjustable Fit :One Size Fits All . AM/FM Radio :No . Pairs :1 qty .Disposable :No . Battery Required :No . Case Included :Yes .
