Function: Mobile phone and laptop maintenance tools, suitable for removing and mounting small precision screws. Material: 45 steel. Screw head : Y shape, plum, rice, cruciform, hexagonal, star. Dimensions: bottom diameter: 50 mm, height: 100 mm. Advantages: compact, portable, multifunction, wide range of applications. Material: 45 steel. Screw head: Y shape, plum, rice, cruciform, hexagonal, star. Function : maintenance tool for mobile phone and laptop, suitable for removing and mounting small precision screws. Dimensions: bottom diameter: 50 mm, height: 100 mm. < p> Material composition: 30 precision fittings are made of 45 # steel, the surface of this set is nickel plated to prevent rust, other plastic parts are made of new PP material, the red part of the handle is soft and non-slip, and the head is connected to the rod is made of forged carbon steel and is very robust. Advantages: compact, portable, multi-function, wide range of applications. Package includes: one set screwdriver