Features: Rainbow spring shock absorption design minimizes screw damage while enhancing efficiency with strong magnetic tips for secure fastener retention. Steel bits feature nonslip grip surfaces and multiple sizes for compatibility with electric drills and manual screwdrivers. Ideal for professional electricians, enthusiasts, and maintenance workers requiring reliable torque control in repetitive screwdriving tasks. Perfect for overhead installations, tight space repairs, and home renovation projects where magnetic screwdriver bits prevent accidental fastener drops. Ensures extended durability across woodworking, appliance assembly, and automotive applications without stripping screw heads. Specifications: Component:Steel Length:65mm+90mm+100mm/65mm+90mm/65mm+110mm/90mm+110mm Package Includes: 2 Optional Package: Package 1 Include:2Pcs Screwdriver Bits Package 2 Include:3Pcs Screwdriver Bits note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.