These Howard Leight by Honeywell X-TREME Uncorded Disposable Earplugs are a low cost, reliable alternative to your current foam earplugs. Designed for extended wear on the job, the soft foam enhances comfort & the smooth tapered shape makes insertion & removal easy. The self-adjusting polyurethane foam expands inside the ear canal to fit virtually every wearer. This custom-fit expansion delivers a Noise Reduction Rating (NRR) of 32 for excellent hearing safety. The signature Howard Leight bright orange color makes earplug compliance checks easy to further promote ear safety. Corded / Cordless Pair: Cordless; Shape: Bell; Material(s): Foam; Noise Reduction Rate (NRR): 32 dB.