Model sand. Particularly fine-grained and completely dust free. The four basic colours (natural white, beige, brown and dark grey 7521-7524) manufactured from all natural soil, Busch then mix the quartz to create natural blends. The application of the sand on your layout is simple: apply Busch white glue (No. 7599) once tacky Sprinkle sand onto it. Ideally suited to creating natural-looking transitions between road and grass borders and so on.