1, Surface: brushed, plating... 2, Holding glass: 6mm, 8mm, 12mm 3, The length are available 4, Best price Material:aluminium alloy,or zinc ... aluminium),Brushed nickel,Brushed champagne,or as your request. Glass clamp Glass thickness SL--B01 6mm SL--B02 6mm SL--B03 8mm ...