Reusable TPR Corded Ear Plugs - NRR 27, 100 per box - Y-pers, Inc.
Amazon.com: Acu-Life Ear Plugs, Ear Plugs for Sleeping, Snoring, Loud Noise, Concerts, Construction, Studying & Traveling, NRR 27, Made in the USA : Health & Household
Elvex Quattro™ NRR 27 Corded Ear Plugs, 50 Pair in Pack - EP-412 - 96-004-813 - Penn Tool Co., Inc
Airsoft? Reusable Corded Earplugs NRR 27 db Rated, Blue Earplug with Orange Cord