3m 1100 ear plugs snr 37 db 3m 1100 the 3m 1100 ear plugs snr 37db 200 pairs are supplied in 200 pairs of two orange ear plugsmaximum wearing comfort plus reliable protection are just two of the features of these specifically designed plugs that have been conically shaped for a perfect fit 3m 1100 ear plugs snr 37 db 200 pairs