COFLEX CR is expressly conceived to perimeter joint wall/floor coverings supplying sufficient elasticity for the expansion and meeting the cove base hygienic corner cleanliness requirements. It also serves as a sound breaker of the covered surfaces so that trampling of foot steps is not transmitted to the adjacent walls. COFLEX CR consists of a main curved co-extruded hard/soft combination module Art. CR 16 with Art. series KJ inserts which slide into CR 16 tracks allowing it to adapt to any covering height and providing a perfect anchoring to the tiled covering.