Features . Soft pliable foam offers comfort for wearing over an extended time. Tapered shape preferred by many wearers for hearing protection. Exciting flame graphic enhances the look of the earplug. Noise Reduction Rating NRR 33 dB CSA Class AL. Bright yellow allows quick compliance checks Specifications . Color Yellow. Noise Reduction Rating 33 dB. Plug Material Soft Polyurethane Foam. Series Blasts. Plug Color Red Yellow. Shape Tapered. Country of Origin USA. Weight 0 86 lbs