The collection of internal leafs Koncept is very rich in terms of colour patterns and suggested types of glazing. A characteristic feature of Koncept leafs is rectangular glazing, which enliven room interiors with natural light. A uniquely elegant, and at the same time universal character of Koncept door leafs makes it possible to adapt them to modernist spaces both in office and residential premises. The harmonious geometry of Koncept leaf glazing modules ensures a subtle and unique character of an interior they are mounted in.