Quality Material: The screwdriver set is made of premium tool steel, stable and not easy to break, resistant to oxidation, corrosion and rust, and very durable for long term use .Precision Design: This mini screwdriver has a precision design, which makes it very suitable for precision repair work on different small objects. The mini screwdriver bits are packaged in a convenient transparent case to make them clean, organized and easy to find. Durable and non-slip: mini screw driver with striped design handle, durable and not easy to slip during use. The handle of the precision screwdriver is non-slip thanks to its ergonomic design and fits comfortably in the hand.Wide Uses: This precision screwdriver kit is easy and convenient to use, perfect for repairing watches, eyeglasses, sunglasses, useful also for repairing electronics, computers and jewelry. Note: The data are all manual measurement, please allow 1 - 3cm error, due to the difference of light and display, there will be a certain color difference, depending on the physical object received.