Product Overview:
PISTONZ™ Earplugs are officially licensed hearing protection of NASCAR®, designed for instant use with a no-roll design. Made from soft foam, they offer a Noise Reduction Rating (NRR) of 29 dB, making them suitable for environments with hazardous noise levels.

Design and Comfort:
The earplugs feature a unique cylindrical shape for a universal fit, ensuring they seal most ear canal sizes effectively. The tips resemble metal but are ultra-soft, allowing for comfortable all-day wear. The design includes a biaxially-stiff stem that is easy to insert and flexible enough to prevent discomfort if impacted.

Product Variants:
Two variants are available: uncorded (Product Code: P1400) and corded (Product Code: P1401), each with 100 pairs per box and 4 boxes per case.

Performance Data:
The earplugs provide octave band attenuation data across various frequencies, with mean attenuation values ranging from 34.3 dB to 46.2 dB. The standard deviation for these values is also provided, indicating the consistency of noise reduction.

Usage and Safety Information:
Proper use is crucial to prevent hearing loss or injury. Users are advised to consult a supervisor or user instructions for correct usage. If there are any ear health issues, a physician should be consulted before use. The NRR may vary based on fit and wearing time, and it is recommended to reduce the NRR by 50% for a more accurate estimate of noise reduction.

Contact Information:
For technical assistance in the U.S., call 1-800-243-4630, and in Canada, call 1-800-267-4414. More information is available at www.3M.com/Hearing.

Environmental Note:
The document encourages recycling and notes that it is printed in the USA.