It is a reference profile made of aluminum, which is mechanically fixed at the initial level and used to protect the system from mechanical and external effects (rain, wind, etc.) at the level where the thermal insulation boards begin, and to act as a gauge in plaster application. By using the subbasement profile, it is ensured that the thermal insulation material is properly seated in the profile and a smooth line is formed. 35 x 33 x 20 mm x 250 cm (10 pcs / Pack) 35 x 43 x 20 mm x 250 cm (10 pcs / Pack) 35 x 53 x 20 mm x 250 cm (10 pcs / Pack)