TruGuard, Banded Ear Plugs With Foam Caps, Oval Shaped Ear Pods Fit The Ear Canal Opening, For Protection Without Pressure, Specifically Designed Left/Right Pods Are Angled For Insertion Into Proper Ear Canal, Maximizing The Sealing Surface & Comfort, Lightweight Just 8 Grams, Band Made Entirely Of Non-Conducting Material To Help Protect Against Electric Shocks, Intelligent Hinge Concept, Making It Easy To Fold Up & Take With You, NRR 21 DB.