7 PCS Electrican's Insulated Electrical Hand Screwdriver Tools Set Accessory1.CR-V steel with heat treatment2.Black finish blade with magnetic tips3.Plastic blade cover4.With ergonomic TPR handle5.Insulated blades for electrical applicationsSpecifications1.Box dimensions: 18.5*14.5*4cm2.Material: Chrome-Vanadium SteelBlade material: CR-V Handle Material: PP + TPR3.Screwdriver pole length: 16cm4. Withstanding voltage: 500VPackage included1 sets screwdriver tools