Product features: Designed and developed in Germany Special anti-dust finish and lacquer coating makes the buttons and frames easy to clean. Made of rugged, non-flammable polycarbonate with anti-UV additives secure durability and reliability. Illuminated switch/ pushbuttons with unique blue LED's for greater ease of use and as expression of your lifestyle. Adjustable cover plates to blend with rough wall surface Exchangable frames make it possible to create different and unique color combinations