Multi-Magnetic Screwdriver Set: 110 in 1 Precision Screwdriver Set has more tools, Comes with all the necessary tools for a wide variety of jobs. Perfect for repairing laptops, mobile devices, and other precision items like wristwatches and eyeglasses. Lightweight and compact design_x000D_ High Quality and Well Perform: These durable screwdriver bits are made of CRV steel, whose hardness can reach HRC52 56, guarantee for long-time use