3M E-A-R™ Classic Earplugs, Pair - Pillow Pack (Box of 200)Description Box of 200 Pairs Slow recovery PVC foam provides comfort with low pressure Moisture resistant foam will maintain its comfort, fit and critical recovery characteristics Shape equalizes pressure throughout the ear canal as it expands Flame retardant and dermatologically safe foam is not irritating One size fits all Colour: Yellow CSA Class AL NPR DB 29