[Features]: 1. 1/4 inch Double- Screwdriver Bit Holder. 2. Quick-Release Keychain Screw Drill Extension Bar Adapter Power Tool. 3. Small size and easy to carry. 4. Universal 1/4inch hex shank socket, suitable for most electric driver, hand held driver and drills. 5. The quick-change bit holder is simple to install and release each bit. [Specifications]: Socket Diameter: 1/4inch 1/4 inch Double- Screwdriver Bit Holder The screwdriver shown in the picture and video is not included in the package list. Colour: yellow Material:Metal Package Contents: 2*Double Extension Rod Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.