This is a Sanwa standard octagonal guide.
Sanwa (Sanwa) can only be mounted lever.
Q. What is a guide?
A guide is a frame that controls the movement of the lever.
The octagonal guide refers to a frame in which the inner space is in the form of an octagon.
Because it rotates relatively rounder than the four-angle guide, users who have difficulty adapting to the four-angle guide often adapt to the eight- pointed guide first.
However, even if it is an octagonal angle, it tends to be difficult to adapt easily if you are used to no angle.
Most Korean arcades use an angleless lever.