Best-Selling High Performance, High Quality 45 In 1 Precision Screwdriver Tool Set For PC, Cell Phones, Laptops, Electronics, Toys, & General Household Uses - Backed By 100% Unconditional Money Back Guarantee 42 high-quality heat-treated chrome vanadium screwdriver bits. Extension bar with magnetic bit holder which enables length to be adjusted to fit the job at hand. Ergonomic design non-slip ABS handle makes it easy to grip and control. High quality plastic case for easy storage and transporting. Wide variety of screwdriver bits to fit almost any type of screw you may use.