Features: brand new and high quality Made of high-quality aluminum materials, practical and durable. This keychain has a flat, thick and round design, which makes it easier to take the product and change the bit with one hand. Universal 1/4-inch quick hex shank and 1/4-inch hex socket fit most electric drivers, hand-held drivers and bits. Compact and portable, easy to carry around. Suitable for drill, screwdriver, batch for head and other to transfer. You can also use the keychain post with your favorite carabiner according to your needs.(Screwdriver bits holder only, other accessories demo in the picture is not included.) Specifications: Material: Aluminum Keychain Size: approx 43x78mm/1.69x3.07 inches Extension Bar Size: approx 34x15x10mm/1.34x0.59x0.39 inches Package Includes: 5x/Set Screwdriver Bits Holder note: 1.Please allow 1-3cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.