Features: Part of the Cornerstone Engineered Bridge System Typical of cut stone support structures used with railroad bridges from the 1800s to the present Wide range of styles and sizes to fit Cornerstone bridge kits - adaptable to other models Ready-to-use one-piece resin castings - no assembly needed! Highly detailed stone surfaces with realistic color and textureWalthers Cornerstone HO-Scale Kits require assembly using basic modeling tools and adhesive (not included). Painting and weathering is recommended. Figures, vehicles, scenery, and other accessories may be pictured but are not included.