Walkers' Pro Low Profile Muff combo kit contains one pair of glasses, one pair of earmuffs, and one pair of earplugs. The pro low-profile earmuffs have a padded headband for comfortable fit and soft PVC ear pads, is ultra-light, and has a NRR rating of 22dB. The sporting glasses have a high-grade polycarbonate lens and an adjustable nose pad. The foam tip earplugs conform to the shape of your ear and have an NRR of 31dB.