Product information:

Material: Chrome vanadium steel for shank, stainless steel for thread, aluminum for color
Shank diameter: 1/4 6.35mm
Interface: 1/4 6.35mm
Color: 3PC red quick release stainless steel post (60, 100, 150mm)

Features:

Quickly install and disassemble the batch head, the colored part can be adjusted telescopically, and is used to install the double-head batch. The head has a strong magnetic coil, which can absorb screws and facilitate installation.
Accepts any 1/4 bit.
For hard to reach screws and nuts.
Hex shank chucks firmly into drills.
Also useful in hand-held drivers.
Magnetized ends holds bits securely.
Universal 1/4" quick-change hex shank fits all power drills, 1/4" impact drivers and handheld drivers.
Extension holders in 3 different sizes so you can get superior access to hard to reach screws, nuts, and fasteners.

Packing list:

3PC red quick release stainless steel post (60, 100, 150mm)