The set consists of 5 moldings from the manufacturer BelloDeco. They are designed for finishing window openings and not only. The models are splines with the Sweep modifier. To get the molding you need, just copy this modifier and add it to your spline. All models are named according to the manufacturer's part numbers.
The BelloDeco company produces skirting boards, cornices, moldings, platbands from impact-resistant material - XPSpolymer. The entire range can be viewed on the website: www.bellodeco.ru.