This is used to clip a cable securely in place once it has been poked through a hole.
I have used it for ethernet cables that are run up through the floor to keep them from falling back.
I'm including the FCStd file for those who can modify using FreeCAD.
STEP format for others, and .stl if the holder happens to be the size that you need.

The print is for only one half of the clip, so you need to print two copies which then snap together. Don't mirror image them, just print two copies straight up.

To use them, place each part on either side of the cable, press together, then slide into your hole.