Add character to your train layout with building kits! Designed for easy assembly and ready to paint, kits give you the ability to add a unique touch to your HO world! Undecorated Parts are numbered for assembly Easy to assemble - some painting and basic modeling tools required PRODUCT SPECIFICATIONS Gauge: HO Gauge Dimensions: 2 1/2" x 10 1/2" MODEL CEMENT AND PAINT NOT INCLUDED. WARNING: CHOKING HAZARD - SMALL PARTS! NOT INTENDED FOR CHILDREN UNDER 3.