Dielectric, metal-free earmuffs suitable for use in workplace environments with exposure to electrical voltage|Smooth telescopic size adjustment for precise and stable fit|Slim stirrup design reduces the risk of snagging in confined areas|Extra soft memory foam ear cushions and ultra low weight padded headband provide optimum comfort even when worn for extended periods|Bright Color coding with v1™,v2™,v3™ noise protection indicator for easy selection and identification|Replacement hygiene kits available separately