This is a wall mount Hook or Peg for anything you want to hang on them.
iPRINT 3D, HATCHBOX, Tianse, etc. PLA, PVC, PETG
Grey but any colour is okay.
I used PLA for my first prints. Extruder temp at 220ºC, bed temp at 45ºC, and fan at 32% after the bottom layers are printed. FR set to 66% to keep holes clean. (fewer spiderwebs)