What can be skirting boards for the ceiling

What can be skirting boards for the ceiling

For example, if the walls in an apartment or house have rounded corners or a room design is implemented using columns, the ceilings are finished with a polyurethane flexible skirting board, perfectly suitable for facing curved and semicircular surfaces. Similar strips have very diverse colors. Plus to this, variations are made that are designed for painting. A separate disadvantage of this type of filtel is usually considered its fairly large weight.