Pre-drilled DURAFLEX-KA profiles are cover profiles made of aluminium for bridging wide joints when retrofitting. The one-sided pre-drilled version is used for additional fastening to the floor covering. The cover profiles can be driven over by cars. The DURAFLEX KA expansion joint series also includes profiles for adhesive fixing and self-adhesive versions. The narrow DURAFLEX KA have a smooth surface, all other widths from 80 mm are equipped with grooved ribs for anti-slip.