SMALL EAR PLUGS - Designed about 20% smaller than Mack's standard-sized foam earplugs to provide ultimate comfort for small or sensitive ear canals. Softer, smaller, silky smooth and contoured HEARING PROTECTION - With a high Noise Reduction Rating (NRR) of 30 decibels and a Single Number Rating (SNR) of 33 decibels , these noise blocking earplugs are great for sleeping, snoring, studying, power tools, shooting sports, travel, loud events, etc PREMIUM, PROTECTIVE, ALUMINUM TRAVEL CASE attaches to your keychain, belt loop or backpack, so your earplugs are clean and convenient when you need them #1 BRAND FOR SNORING, SLEEPING AND TO PROTECT HEARING - Mack’s is the #1 doctor recommended brand of foam earplugs to protect hearing and to get a good night’s sleep when sleeping with a snoring spouse SATISFACTION GUARANTEED - Trust Mack’s, the brand that doctors trust, since 1962.