Disposable Corded Ear Plugs, Bullet Shape, 32 dB, 100 PairsMfr #: XTR 30 LOW COST ALTERNATIVE: An easy wearing, inexpensive and reliable alternative to your current foam earplugs without compromising safety or performance EXCELLENT NRR 32 HEARING PROTECTION: Self adjusting polyurethane foam expands to fit almost any ear canal for an excellent Noise Reduction Rating of 32 (higher than most foam disposable earplugs) HI VIZ SAFETY: Signature Howard Leight bright orange color makes visual inspection easy to help