The HO Roundhouse 50' Plugdoor Box Car Rock Island RI #516648 is a pre-built model replica of a 50 foot plug door boxcar in blue color. Made of pressed steel, white metal, plastic, and diecast materials, this HO scale model features a two-rail system and is designed by the Roundhouse brand. With a theme of transportation, this painted box car is 2 inches tall and weighs 0.5 pounds, making it a realistic addition to any model railroad or train collection.