MAXIMUM NOISE REDUCTION - With the highest Noise Reduction Rating (NRR) of 33 decibels, these orange noise blocking earplugs help reduce the potentially harmful effects of loud noise EXTREME COMFORT - Made with Mack’s Comfy Cush foam for excellent performance and unmatched comfort. Finally, a 33 dB NRR, low pressure, foam earplug designed for larger sized ear canals without the excessive, uncomfortable bulk that comes with other brands. MULTI–PURPOSE - Great for sleeping, studying, snoring, work, travel, concerts, motor sports, and loud events #1 DOCTOR RECOMMENDED BRAND - Mack’s is the earplug brand most often recommended by Ear, Nose and Throat Doctors MADE IN THE USA - Proudly made in the USA with safe, high performance, noise reducing foam. Satisfaction guaranteed!