VDE and GS certified safe working standards of 1000 Volts Made by Chrome vanadium steel Screwdriver tips all have Hardening treatment and Manganese phosphate treatment Industry level quality can use for Professional work Home DIY Insulated and no-slip handle comfortable for use Type of screwdriver bits: Torx,Pozidriv,Slotted, Operating Temperature: -25℃ to 70℃ Color: red + yellow Material :Chrome vanadium alloy steel Package Contents: 4 * Word screwdriver 2 * screwdriver 2 * M word screwdriver 3 * Flower type screwdriver 1 * Insulated electric pen 1 * Insulated screwdriver Only 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.