Walkers Sport Combo Kit includes Sport Glasses, Range Muffs and Ear Plugs. Range Muffs have a Noise reduction rating of 29dB NRR and are ultra lightweight; Ear Plugs have a Noise reduction rating of 31dB NRR and conform to the shape of the ear; Sport Glasses are made with high-grade Polycarbonate lenses, Meet ANSI Z87.1-2003 high-impact requirements, Adapt to a broad range of facial sizes with adjustable nose pad, include UV Ultimate Vision.