Travel earplugs, earplug, ear plug.
Canister Ear Plugs With Key Ring is suit for travel, sleep, firearms, study.

Canister Ear Plugs With Key Ring is suit for travel, sleep, firearms, study.Convenient soft cord
Recommended for high noise situations
Noise reduction rating: 25dB - 33dBComfortably fits ear canal
Features smooth and dirt-resistant surface for hygiene
Cord helps prevent loss.