The Athearn HO Western Pacific WP Bay Window Caboose #444 Item #74681 is a 1:87 scale model replica of a caboose in red color. Made of plastic and featuring an analog control system, this HO gauge caboose is part of a two-rail system. With a height of 2 inches, it is designed for collectors and hobbyists aged 17 years and up, making it a perfect addition to transportation-themed model railroads.