The Pro Grass Precision Applicator Urban Rail Yard Kit by War World Scenics is ideal for creating an urban rail yard landscape. The kit includes a selection of scenery materials and glue to enhance your layout. The 2mm basing grass is an ideal first layer, and the 4mm layering grass can then be used to add depth and build grass height. The Precision Applicator is purposely designed for applying intricate modelling details, for example, along the edge of railway track, or in between two buildings. It is powered by a 9V battery which provides a static electrical current to charge the static grass fibres, causing them to arrange in a vertical position on your selected surface, giving a realistic 3D effect. This Precision Applicator can also be used to create grass tufts directly onto your layout or model bases or for applying static grass around the edges of buildings.