Howard Leight TrustFit Plus reusable push-in earplugs are designed with an ergonomic stem & dimpled foam tip so they are easy to fully insert & remove without picking up dirt from workers' fingers & comfortable to wear during the workday. A flared end on bell-shaped earplugs provides extra material to cover the outside of the ear canal to help block sound. The extra material also provides a gripping point to aid insertion & removal of the plug. Corded / Cordless Pair: Cordless; Shape: Bell; Material(s): Foam; Noise Reduction Rate (NRR): 31 dB.