The one in the Picture is printed out of PA-12 CF. I would suggest you choose a filament that can survive sunlight and is tough.
The Clamp needs to be printed twice.
Hardware needed for Clamps: 4 x M4 x 16 bolts and nuts.
The author remixed this model.
I rotated the model and designed clamps to hold it securely over the handlebar. The space between the clamps is 40 x 50 mm.
The Kiox mounting holes on the holder are slightly bigger.