Sprinter Rail AnchorsDesigned for NCV3 (2006 present) Sprinters with factory roof rails, these anchors kits include laser cut aluminum nuts that drop anywhere into the rail and lock into place by tightening the stainless steel eye bolt, so theres no need to remove your roof rack, solar panels, or other existing hardware. All stainless and aluminum hardware wont rust, and provide a secure, permanent mounting point for your MoonShade. Includes 2. Product Specs Materials