1. Value Package: This screwdriver set has 28 * conventional and precision bits, 1 * screwdriver, 1 * tweezers, 1 * pry bar. The upgraded extended drill bit is 10mm than one, which is convenient for disassembly and mounting of deep screws. 2. Quality Assurance: Made of high-quality steel material and S2 chromium vanadium alloy, it is harder and more durable than ordinary steel. Sandblasted surface anodes treatment, anti-sweat, and anti-corrosion. 3. Magnetic Storage Box: Built-in eject button, One-click pop-up bit container, keeps all screws in place so they 't fall. Magnetized tips improve screw handling and manipulation. 4. Portable Size: 15 x 3.8cm/5.9 x 1.5inch, Easy to carry and place. You can also carry it with you in your pocket and bag casually, easy to use at any time. 5. Wide Application: Used for watches, eyeglasses, cell phone, computer, electronics, laptops, Game Console, , jewelry with small screws or DIY work, cameras etc. Colour: gray Material: Chrome vanadium steel Package Contents: 1 x 31-in-1 Precision Screwdriver Set Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.