HOWARD LEIGHT LL-30 CORDED FOAM EAR PLUGS. VIBRANT COLORS MAKES PROTECTION VISIBLE. SELF ADJUSTING FOAM EXPANDS TO FIT VIRTUALLY ANY SIZE EAR CANAL. CONTOURED T-SHAPE FOR EASY INSERTION AND WEAR. SMOOTH, SOIL RESISTANT CLOSED CELL-FOAM SKIN PREVENTS DIRT BUILD-UP. NOISE REDUCTION RATING (NRR) 32 DECIBELS. 100 CT. BOX. SOLD BY THE BOX.