Comparison : Item # 15HOW-QD30, Quiet® Earplug
Item # 15HOW-MAX-1, Max® 200 Pr/Bx Earplug
Item # 153M1100-DP, 3M™ Soft Foam Earplug Dispenser Assembly
Item # 15HOW-QB1, QB1 HYG® Earplug
Item # 15BIL-1011992, Leightning® Earmuff