4pcs/Set Screwdriver Bits Set U Fork Magnetic Slotted Screw Driver CR-V Multi Function Hand Tool Kit Style: U1.7+U2.0+U2.3+U2.6 a total of four pieces Size information: The total length of each piece is 160mm, the handle length is 77mm, and the handle length is 85mm (due to manual measurement, there is a 1-2mm error in the size). The style design accord with the ergonomic shank principle, easy to use, not easy to fatigue, it can solve stubborn screws on the air filter, high-end patch board or etc. The handle is made of PP, anti-slip design of double plastic, very comfortable to use Designed according to human factors engineering, it achievemaximum torque The screwdriver handle is specially designed according to human factors engineering and is comfortable and convenient to use The professional hand tool screwdriver is made of chrome vanadium steel, stronger torsion in use