1.Material: Made from aerospacegrade chrome vanadium steel, the small ratcheting screwdriver is built to last. Processed to high hardness, the interchangeable magnetic screwdriver bit ensures durability and no damage to electronics. 2. The 145in1 screwdriver set is suitable for various electronics such as laptops, computers, phones, drones, cameras, remotecontrolled cars, and glasses. It is also useful for daily home maintenance like furniture disassembly, PC modding, bicycles, and more. 3. and practical: The screwdriver tool set comes in a portable ABS case, allowing for easy storage and transport. With 120 bits including standard and long screwdriver bits, it a wide range of options for various scenarios. 4.The set includes 116 standard bits suitable for most electronic devices, as well as 4 long screwdriver bits designed for hardtoreach areas. Whether it's gadget repair or DIY projects, this screwdriver set is perfectly suited.