Feature 145Pcs Assortment: There are 45pcs screwdriver tool in the set, which include various screwdriver bits in different specifications. 2Simpler Screwing: Easy to adjust to CW and CCW rotation for screw tightening and unscrewing, very simple for assembly and removal. 3Wider in Utility: Able to work in conjunction with sockets, the hand screwdriver is applicable to installation, maintenance and more. 4Premium Material: Mainly made of premium alloy steel material with a sturdy structure, has excellent durability for long term use. 5The Carrying Box: The storage box attached can store all the bits in an orderly way, largely simplifying the carrying to outside.Item Type: Screwdriver BitMaterial: Alloy Steel .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Handle1 x Connection Rod1 x Tweezers42 x Screwdriver Bit1 x Storage Box