This orientation is suitable for placing a narrow place such as a place next to a laptop computer.
Rotate each of the 4 feet counter-clockwise to remove.
Be careful not to damage your nails when removing the caps.
If necessary, use a thin-tipped tool to remove the caps. However, be careful not to damage the unit when using tools.
After attaching the feet, adjust the height of the feet as necessary so that the set is stable when installed.