Nonallergenic ear plugs manufactured from polyvinyl chloride foam. Provides an excellent source of sound attenuation at an affordable price. The plugs expand to the size and shape of the ear canal for a comfort fit. Fluorescent orange/light green color provides high visibility for compliance checks. Dispenser boxes of individually packaged pairs can be easily mounted using a self-adhesive tape strip. Corded/Cordless: Cordless; Shape: Cylindrical; Material(s): Polyvinyl Chloride; Noise Reduction Rate (NRR): 29 dB.