OEM mechanical keyboard transparent keycaps with height options for R1-R4, note the height when ordering the corresponding quantity.

Highly Explained: R4 refers to the F zone and the rows of numbers 1234567890-+ until -.

R3 is the row of tabs.

r2 is this row of caps

R1 refers to the row of shift and catrl keys. If you don't understand when taking a picture, feel free to consult our customer service. Below is a schematic diagram of the keyboard height.

The OEM keycap height is different from FILCO and the original factory Cherry keycaps. After that, many narrow-edge keyboards have referred to the design of FILCO. Currently, most mechanical keyboards with steel plates are using the OEM height. The OEM height keycaps are about 2mm higher than the original factory keycaps, but the height difference is not a problem and can be used without concern.