The RUBI DELTA LS leveling system flanges are available in different thicknesses to allow installation in 1mm, 1.5mm, 2mm and 3mm joints and at different heights for working with tiles ceramic of different thicknesses: 3-12 mm, 6-15 mm or 11-20 mm. Included: 1.5mm flanges for ceramics with a thickness between 3 and 12 mm.