Description ULTRA COMFORTABLE – Made with super low-pressure, slow release, Comfy Cush Comfort Foam. With a Noise Reduction Rating (NRR) of 33 decibels, these versatile, noise blocking earplugs are great for sleeping, studying, work, travel, concerts, relaxation, motorcycling, loud events, etc. Contains 50 Pair of non-packaged earplugs. Related