Mack's Original Soft Foam Earplugs, 30 Pair Value Pack - 32dB NRR - Walmart.com
Amazon.com: Mack's Maximum Protection Soft Foam Earplugs – 50 Pair, 33 dB Highest NRR – Comfortable Ear Plugs for Sleeping, Snoring, Loud Concerts, Motorcycles and Power Tools | Made in USA : Health & Household
Amazon.com: Mack's Maximum Protection Soft Foam Earplugs – 10 Pair, 33 dB Highest NRR – Comfortable Ear Plugs for Sleeping, Snoring, Loud Concerts, Motorcycles and Power Tools | Made in USA : Health & Household