Features: Brand new and high quality 80/120mm extension bit holder is design for working corners and tight space. Can connection to a drill, electric screwdriver and manual wrenches, etc. With super magnetic, good adsorption, hold the drill and fasteners firmly, not problem dropping tool while working. Greatly increasing magnetism. The strong magnetic extension bit holder is selected steel, and the sleeve is selected from aluminum. Wear-resistant, hard, not easy to break and damage. Fine technology and smooth surfaces coating can prevent damage to component and substances that can come into contact with bit holder during use. Strong magnetic extension bit holder is 1/4inch Hex and hex tool, and is a good helper for daily tool use. Suitable for household maintenance, and most general repairs.. Specifications: Material:Stainless Steel Size:80mm/120mm Package Includes: 1Pc Extension Rod 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.