HowardLeig, Max-1 D Single-Use Earplugs, Cordless, 33nrr, Coral, Ls 500 Refill, Honeywell Environmental, Mfr#: MAX1D

High NRR plugs deliver superior noise-blocking performance. Contoured bell-shaped design provides an excellent ear-canal fit with enhanced back-out resistance. Soft, expanding polyurethane foam ensures a comfortable fit. Smooth, soil-resistant closed-cell foam skin protects against dirt buildup. Leight Source 500 Refill. Corded/Cordless: Cordless; Shape: Bell; Materials: Polyurethane Foam; Noise Reduction Rate NRR: 33 dB.