Clip-on hook for hanging towels on the bathroom radiator.
OnShape link to the model:
https://cad.onshape.com/documents/696850d260ffb0effed9e21f/w/3357402338966abacc41e0c3/e/da6bfe111a99fb84912df04e?renderMode=0&uiState=63eb6a0e4a9c14708af636f9