The screwdrivers are made of high-quality aluminum alloy, making it much easier to repair your phone. They are strong, resistant to all kinds of physical damage. - Aluminum Alloy Handle: L 94 mm - Magnetic Extension Bar: L 60 mm - Screw Bits Dimension: L 28 mm - Screw Bits Dimension 4 x 28 mm - Aluminum alloy handle, magnetic extension bar, 36 screw bits. - Ergonomic handle, rotating cap design, easy and flexible for operations. - The front end of the handle with magnetical design can hold the bits and magnetize the screws. - Chrome vanadium steel forging and heat treatment, the screw bits are durable. - Fully automatic flip cover, you can open and stand this unit on your desk by pressing the button on the box. - Main part is made of CR-V material, with an extendable stick to deal with narrow parts. - Ergonomic magnetic anti-skid handle. Rubber coating design, durable and shockproof. - The bits are made of high quality material which have high hardness. Including 36 types of screwdriver bits, can meet different demands. - Press the button, the box cover automatically open and can stand on the table. All tools are well protected by a plastic case, convenient to carry. - Suitable for repairing smart phone and other electronic products.