Features: The screwdriver bits are made of chrome alloy steel with high hardness; Ergonomic handle provides a comfortable grip; Screwdrivers set can meet the daliy request; Screwdriver sets are suitable for many occasions such as home use, outdoor, factory and commercial installation. Specifications: Material:Chrome Alloy Steel Type:44pcs Screwdriver Set Size:as picture show Color:blue black Package Includes: 44pcs Screwdriver Set Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.