A synthetic fiber used to create tree foliage and/or vines, undergrowth and other rambling vegetation. Apply to the sides of buildings, Tunnel Portals , Retaining Walls , light poles, billboards and along fence rows, or other places you see vines grow. Use Poly Fiber after you have added ground covers and set buildings on your layout. Great for quick and economical tree masses on your layout. Attach with Scenic Cement™. Purchase the Scenery Manual for additional information about how to use the Landscape System.