Designed for women with small or sensitive ear canals, Mack’s dream girl soft foam earplugs have a unique hollowed and flared design that maximizes comfort, especially during sleep. They are softer, smaller, silky smooth and contoured to provide unmatched comfort. With a noise reduction rating (NRR) of 30 decibels, Mack’s dream girl can be used in environments where noise is just a nuisance up to environments with hazardous noise levels. For sleeping, reading, loud events, music, travel, etc. Directions - with clean hands, roll plug into a tight, crease-free cylinder. With opposite hand, reach over head and pull up and back on outer ear to straighten ear canal. Quickly insert earplug well into ear canal and hold in until it expands for a comfortable, secure fit.