The Lionel 6-27707 Union Pacific Husky Stack 2 Pack is a pre-built model train container car set suitable for collectors and hobbyists aged 17 years and up. Made of plastic and diecast materials, these multicolor cars feature a 1:48 scale and come in a brand-new condition. Manufactured between 2000-2009 in China, this set includes two removable containers per car, perfect for adding detail to your train layout. With a Three-Rail System and depicting the Union Pacific Railroad, this set is a great addition to any O gauge model railroad collection.