Louvolite Vogue and Slim-line 89mm (3.5") carrier trucks available in single units or pre-linked sets of 10. This Fast track design with cutaway channel to carry the draw cord makes for easy and simple re-assembly. Alternative to standard cord through design. These are Top Quality units with Stainless Steel links. If you are using these units in place of the standard cord through design trucks, you will need to buy the cord lock (Owl and Elephant) separately to terminate the draw cords.