The feet on the ProtoArc Backlit Bluetooth Ergonomic Keyboard EK01, while standard, are too short for my tastes.

The standard built-in feet give a rear keyboard rise of 3mm. These feet here will give either 4.5mm or 5mm (depending on which way you face them). As I am transitioning from a Microsoft Natural Elite 2/3 to this keyboard, I just need a bit more height at the back.

I printed using standard PLA at 10% infill at 0.15mm quality settings on a Pruse Mini+. It used 3.09m of filament and took my printer about 1h6m to print (each foot). I found a raft of 2 layers was sufficient to keep the bottom of the foot sharp.

Prusa

MINI+

Yes

Yes

0.15

10