Features: Magnetic attraction design, easy to attract screws; Telescopic design with adjustable length. 145 in 1 designs, suitable for all kind of screws, convenient and practical. A essential toolkit addition for auto mechanics, furniture restorers, and anyone frequently dealing with screw installations or removals. Perfects for home renovations, automotive maintenance, and industrial assembly lines, this bit set ensures you're prepared for any screw related task. Streamlines your work with the convenience of this portable screwdriver bit set, designing to fit a ranges of electric screwdriver and enhances your efficiency on the go. Specifications: Component:Chrome Ttangsten Steel Size: As Picture Shown Package Includes: 1 Set Electric Screwdriver note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.