Proint is a line of internal corner profiles available in aluminium, steel and PVC designed for the perimeter connection in the installation between wall and floor or as a perimeter joint. The particular sections of this line in fact facilitate corner expansion between the two surfaces. Installation is very simple and avoids the use of silicone for sealing, an advantage both from an aesthetic and a hygienic point of view: the absence of silicone in fact prevents the proliferation of dirt and bacteria.