Glass channel: 1.AL 6063. 2.Surface: Satinless steel look, Matt silver, Raw, no anodized 3 .For 21.52 - 25.52mm Glass channel:1, Avaliable for wall ground and glass installations.2, High quality AL 6063.3, Opens a wide range of individually adaptable installation options..4, Brings a contemporary new look to the office or the home. garde-corps aluminium/'Steady' Aluminum Glass Channel-Side 21.52- ...