About this item Material: aluminum alloy, very hard and not easy to wear Design: Magnetic design makes it easy to use. You only need to select the drill bit you need and put it in the hole of the handle. Quantity: 25 in 1 precision screwdriver kit comes with 25 precision screwdrivers Function: Specially used in consumer electronics, telephones, watches, cameras, glasses, toys, etc. Suitable for professional repair center/home/office/school/DIY shop etc. Easy to carry: The professional portable screwdriver set has the perfect weight and compact housing, which can be easily carried where needed.