Replacement guard for the red, #1 3mm 1/8th inch guard for the Wahl Color Pro Hair Clipper Kit 79300 400.
The clip on mine broke, so 3d printing to the rescue.
I printed in PETG as the original guard's clip broke due to a rigidity issue, however PLA may be fine. I don't have support dialed in with PETG, which is one reason the layer lines get so rough on the face of my print.
Since I was having roughness on the print, I wound up orienting the blades face down on the print bed so that they would be smooth as those are what come in contact with my head. However, this results in the face with the numbers visible being even more rough due to the use of supports.
The author marked this model as their own original creation.