The bright idea in hearing protection, laser lite Corded or Uncorded earplugs are made of low-pressure polyurethane foam that expand gently inside the ear canal for comfortable long-term wear. Their contoured t-shape allows for easy insertion and wear. High-visibility Magenta and yellow colors make laser lite disposable earplugs easy to be seen during compliance checks. With an NRR of 32Db, these earplugs provide great hearing protection that anyone can "see". 100 pairs per dispenser.