Mountain Valley Scenery Kit® S928 Bring your train set to life! The Mountain Valley Scenery Kit is great for modelers who want to add scenery and build a tunnel on a new or existing 4- x 8-foot (121 cm x 243 cm ) layout. Designed for HO scale and easily adapts to N and O scales. Kit includes the materials, instructions and patterns needed to add trees, grass, weeds, rocks, mountains, a tunnel, ballast and more. Over 24 products are included...even paint and glue! Easy to follow step-by-step instructions. Train set, track, buildings and vehicles not included. About Layout Kits Layout systems allow modelers to easily finish a complete layout while developing the expertise to keep on building! Designed to work together, the layout, scenery and building kits can also be used separately. Each kit includes detailed plans and instructions. Use layout systems to build a complete layout, a starter layout to be expanded or easily attach to an existing layout.