This complete four-cover kit uses accurate L663 side step dimensional scan data. Every edge profile, contour radius and mounting footprint aligns perfectly with factory Defender 110 side step assemblies. As a result, the set creates gapless, flush integration with existing step hardware. It exclusively suits four-door Defender 110 L663 variants. Conversely, it does not fit Defender 90, 130 or pre-L663 generation models. Manufactured with rigid high-grade composite material, each cover features a raised chequer plate textured pattern. This industrial tread maximises underfoot friction. Meanwhile, the premium satin black finish resists light reflection, fingerprint marking and minor surface scuffs. It maintains a consistent factory-grade matte aesthetic that complements official Land Rover exterior styling packs.