Self-levelling supports for uneven surfaces, with a range from 47 to 392 mm. Ideal for stone and ceramic floors, they guarantee perfect laying.For laying situations with very uneven surfaces, Impertek has expanded the long-standing Martinetto range with the Balance support series: 7 supports with a range from 47 to 392 mm with integrated Balance self-levelling head, which automatically adjusts the slope of the laying surface by up to 5%. Available with four types of tabs (height h 10 mm and thickness 2, 3, 4 or 6 mm), they are ideal for stone and ceramic floors.