Mack's Original soft foam earplugs are made with super soft foam and are perfect for extended wear in situations where comfort is paramount Great for to use when sleeping, studying, when there are loud noises, work, power tools and traveling. Moulded with state-of-the-art, super low-pressure foam, slow release comfort foam. Fully skinned and tapered. Discard after several uses or as soon as dirt or wax accumulates on earplugs. User preferred teal colour makes them as easy on your eyes as they are on your ears. Extreme softness for maximum comfort. With a noise reduction rating of 29 decibels (when used as directed).