forged from chrome vanadium steel and the surface is blackenedHead magnetic treatment, adsorption screw head is more convenientA variety of sizes for your choice, with a package convenient to carryHandle material PP, pressure 1000vPENGGONG 9 x Insulated Screwdriver Set Electrician Dedicated Magnetic Precision CR-V High Voltage 1000V Slotted Phillips Hand ToolsSize:Slotted: 3*75mm 4*75mm 5*75mm 6*100mm 6*150mmPhillips: PH3*75mm PH4*75mm PH5*75mm PH6*100mmColor: Photo ColorMaterial: Chrome vanadium alloy steelPackage Contents:9 * Insulated Screwdriver SetOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.