Our Luxline model is our best model, it is made of extra thick 2.5 millimeter aluminum and a double layer in the gutter which makes it even stronger. Our Premium model is resistant to the toughest weather conditions all over the world! Our Premium model can carry a polycarbonate roof of almost all depths and a glass roof of up to 4 meters. Just like our Optimum model, it comes with all associated accessories such as rubbers, screws, and possibly LED lighting.