HOWARD LEIGHT HL400-LL-REFILL DISPENSER REFILL CANISTER, T-SHAPE, 400 PAIR HOWARD LEIGHT’S LASERLITE® EARPLUGS ARE CONSTRUCTED OF A SELF-ADJUSTING POLYURETHANE FOAM THAT EXPANDS TO FIT VIRTUALLY EVERY WEARER. THE CONTOURED T-SHAPE ALLOWS FOR EASY INSERTION AND COMFORTABLE WEAR. 400 PAIRS PER DISPENSER AND 2 DISPENSERS PER CASE. 2 DISPENSER REFILLS/CASE VIBRANT COLORS TO MAKE PROTECTION VISIBLE SELF-ADJUSTING POLYURETHANE FOAM EXPANDS TO FIT VIRTUALLY EVERY WEARER CONTOURED T-SHAPE FOR EASY INSERTION AND WEAR SMOOTH, SOIL-RESISTANT CLOSED CELL-FOAM SKIN PREVENTS DIRT BUILD-UP