The Chamfer Round profile is much like the standard chamfer design but features a slightly rounded top edge. It's manufactured using premium moisture resistant MDF meaning imperfections such and knots, cracks and splintering are non-existent. The picture represents a skirting that is 150mm tall and 18mm thick. Note that the moulded section is approximately 25mm (from where the design starts to where it finishes) and does not change regardless of the height you choose. This product is 195mm in height, 18mm in thickness and 4200mm in length. It has a primed (white) finish. It does not have a rebate (space for cables to hide behind skirting).