1u modifier keycaps similar to F10 profile. Designed for use with an ortholinear split keyboard, caps feature a ISO symbol-esque labels inset to 0.6mm. Stems are MX compatible, but depending on your printer tolerances, you may need to file the outside of the stem socket to prevent it from colliding with the switch housing during forward-forced actuation.
Note that some keys are multipurpose (end/home, delete/backspace) and can be changed to their counterpart by rotating 180deg.
Mine were printed at 0.2mm layer height, 100% infill, changing filament at 0.6mm to allow opaque tops and a translucent body for shine-thru. For best results with this method, print with infill only, aligned rectilinear fill to maximize translucent print clarity.
The author hasn't provided the model origin yet.