[1 or 4 inch Hex Screwdriver Holder]Package includes 12 pieces of 1 or 4 hex handle extension rod with a black metal hanging buckle, compatible with most 1 or 4 fast hex handles and 1 or 4 hex sockets and electric screwdrivers, hand- screwdrivers, and drill . [Strong and Sturdy]The drill bit extension bracket is made of high-quality metal, can achieve maximum durability, and extend the service life, and the chrome-plated surface is anti-rust and corrosion-resistant,anti-oxidation. [Safety to Use]It can be carried with you to avoid accidental dropping of the hexagonal handle. It is easier to the product and replace the drill bit you need with one hand, which helps to the safety of high-altitude operations [Protable and Widely Application]The extension rod with small size and easy to carry around, suitable for the transfer of drill , screwdrivers, etc. It can also be used as a . Specification: Drive System: Hex Colour:Photo Color Material:Metal Size:10.49 x 7.19 x 2.79 cm Package Contents: 12 x Holder Extension Bar Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.