Features: Brand new and high quality The sleeve adopts 1/4 hex handle design, which is nonmagnetic strength Selected from steel, reliable. 11 sleeves with different size, suitable for various screw specifications; Precisions ensures suit for with screws. Suitable for maintenance personnel, DIY enthusiasts and other people who need to use screws frequently. Can be widely used in home maintenance, automobile maintenance, electronic equipment disassembly, and can handle all kind of screw fixing problem conveniently and quickly. Specifications: Material:Steel Length:35mm/37mm/38mm Package Includes: 11Pcs Hex Nut Driver note: 1.Please allow 1-2cm errors due to manual measurement, make 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.