Fully insulating electrical safety gloves. Class 0 rated for 1000V working voltage. Each pair of gloves is individually tested and marked to EN60903 standard which advises regular testing by inflation to check for air leaks.Length 360mm, thickness 1.0mm. Other sizes available: Large (Part No. 6627), Extra Large (Part No 6628). Leather overgloves are recommended to protect from mechanical hazards and electrical arcing.