Foam Weather Strips Can Be Used On Wood Or Metal Door And Window Frames Concrete; Walls Or Any Other Surface To Seal And Isolate Gaps Where Rain Water Is Seeping Through Or Wind Are Causing A Draught . It Is An Affordable Material That Is Easy To Install And An Effective Sealer Under Windy And Humid Conditions. Its Sold In Different Widths And Thicknesses; Which Makes It Best For Irregular-Size Gaps And Openings. Available In Black Only.