I modified one of the holes to fit in MK3 filament sensor cover and get it to stay in place
original: https://www.thingiverse.com/thing:3404664
added v2: better fit
Printer Brand: Prusa
Printer: i3 MK3
Rafts: No
Supports: No
Resolution: 0.2
Infill: 20
Tinkercad
The author marked this model as their own original creation. Imported from Thingiverse.