Ear plugs is made of  PU foam in clear case.  With a Noise Reduction Rating (NRR) of 32 decibels, these versatile, noise blocking earplugs can protect your ears from loud noise and sounds, are great for sleeping, studying, work, travel, concerts, relaxation, motorcycling, loud events, etc. These custom wholesale ear plugs in case are perfect for getting your brand or message noticed. Various colors are available. Please feel free to send item number by e-mail to get the latest price.