SparkPlugs® Uncorded 40 pairs per jar. HANDY AND CONVENIENT Whether you need earplugs for sleeping, snoring, loud noise, traveling, concerts, studying, or MRI/medical procedures, the Moldex Earplug Jars are the handy and convenient personal supply of hearing protection. The Moldex Earplug Jar is anywhere and everywhere you need it to be. EASY FIT, SOFT FOAM Moldex foam earplugs are made of extra-soft, extra light foam. The tapered shape of SparkPlugs fit easily into the ear canal, allowing them to seal gently and snugly with minimal pressure. Plus, the outer surface of the earplugs is smooth, so it doesn't irritate the ear canal. They're so comfortable you'll forget you're wearing earplugs. Made in America.