Replaceable front cover for QLOCKTWO CLASSIC: The magnetic front cover CREATOR'S EDITION RAW IRON is made of raw steel adds a bit of rock ‘n‘ roll to your house. Every front cover is one of a kind. Its color varies from deep black to green, blue and anthracite. The varying colors of the material are the result of the thermal processing of the surface. Each of these unique pieces is signed and individually numbered using laser engraving .