The 1 Slim C.A.T. concealed mechanical hooking system is the perfect solution for creating ventilated facades with large-size slabs (120x278, 120x240, 120x120 cm) with a slim thickness – 6 mm. The slabs are industrially engraved on the back, in the upper and lower part, with a double 45° ‘dovetail' groove set longitudinally, which allows mechanical anchoring to metal profiles that will support the ceramic surface.