The KL accessory consists of one piece and serves as an accessory to place on the Structusol slat. This accessory was marketed as a finish. The KL accessory is placed at the end of the Structusol slat that is adjacent to the edge of a terrace or against a wall. This accessory can be fastened by means of blind rivets in the holes provided. The extra space serves as a joint, so that water can seep away.