The clip is about 32mm long. Works best with PLA or PLA+. I printed with a 0.25mm nozzle at 0.1mm layer height, but it should also work fine with a 0.4mm nozzle.
You may need to under-extrude the first layer a bit if using the 0.4mm nozzle to keep it from closing the small gaps.
The author remixed this model.