The Proskit HW-V211B is a VDE 1000V insulated single box end wrench with an 11mm size. VDE (Verband der Elektrotechnik, Elektronik und Informationstechnik) certification ensures that the wrench is designed for electrical work, providing safety for use on live electrical circuits up to 1000 volts. Key Features: Insulated Design: The wrench is insulated to provide protection against electrical shocks while working with electrical components. VDE Certified: Rated for up to 1000V, ensuring safe use on electrical systems. Single Box End: It has a box end on one side, which is typically used for gripping fasteners with more torque, and is ideal for working in tight spaces. Size: The wrench is 11mm, which is suitable for working with 11mm nuts and bolts. This tool is ideal for electricians or anyone working in electrical installations, providing peace of mind when handling electrical connections and fasteners. Would you like more details or specifications for the Proskit HW-V211B wrench?