This set includes two sets of Lionel CAT No. 2110 trestle bridge parts, perfect for adding an extra touch to your O gauge train layout. The brand is Lionel and the model is CAT No. 2110, with vintage being no. The type is a bridge and the gauge is O. These parts are great for use in building tunnels and bridges for your model railroads and trains. They belong to the category of toys and hobbies, specifically model railroads and trains, parts and accessories, and buildings, tunnels and bridges.