1、The multi screwdriver can serve as a voltage tester, slotted screwdriver, and cross screwdriver. 3 in 1 design brings much convenience for you. 2、Overall insulated sleeve protects from electric shock, ensures safety use under 500 volts, perfect for electrical works. 3、Used to see whether a circuit is carrying current. If the small neon light in the handle lights up, there is power going to the circuit. Otherwise the circuit is dead. 4、Magnetic tip can easily make screws stick to it for efficient and convenient installation. 5、The tips are corrosion-resistant, and a slip-resistant handgrip reduces fatigue while ensuring a sturdy grip. 6、Handle is made from high-grade PP and TPR, which features good resistance to ageing and deformation, well-built for long lasting use. A high-grade, corrosion-resistant finish keeps the tool performing well year after year. Features: The multi screwdriver can serve as a voltage tester, slotted screwdriver, and cross screwdriver. 3 in 1 design brings much convenience for you. Overall insulated sleeve protects from electric shock, ensures safety use under 500 volts, perfect for electrical works. Used to see whether a circuit is carrying current. If the small neon light in the handle lights up, there is power going to the circuit. Otherwise the circuit is dead. Magnetic tip can easily make screws stick to it for efficient and convenient installation. The tips are corrosion-resistant, and a slip-resistant handgrip reduces fatigue while ensuring a sturdy grip. Handle is made from high-grade PP and TPR, which features good resistance to ageing and deformation, well-built for long lasting use. Note: *Touch the tip of the tester screwdriver to the wire you're testing, being sure to hold the tester screwdriver's insulated handle. Specifications: Material: PP, TPR, Copper Color: Red Type: PH1/SL4, PH1/SL5, PH2/SL6(optional) Handle Length: 11.5cm / 4.52in Shank Length: 15cm / 5.9in Package Size: 21.5*3.5*3.5cm / 8.46*1.37*1.37in Package Weight: 86g / 3.03oz Packing List: 1 * Voltage Tester Driver 1 * Voltage Tester Driver