Specifications:The handle is made of high quality PP and TPR material, which is durable, anti-aging, and not easy to deformation.Each screwdriver is tested at 1000 volts in a water bath to guarantee safe working standards of 1000 volts.Insulated handle fits the shape to the hand for the final in comfort and high speed torque transfer.The test pen with exquisite and compact design is very easy to use and portable.Item Name: Test PenMaterial: Chromium-vanadium Alloy SteelWithstand Voltage: 1000VProduct Specifications: A (PH1/SL4), B (PH1/SL5), C (PH2/SL6)Features: Insulated, Dual-purpose, Hand ToolHandle Length: 11.5cm/4.53" (Approx.)Screwdriver Length: 21.5cm/8.46" (Approx.)Bit Length: 15cm/5.91" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Test Pen Handle1 x Dual-purpose Bit