Monitor measures 8.25 inch long and Merrimac measures 15 inch long. Please note this model comes from Lindberg tooling, not the Pyro tooling. The Merrimac scale is 1-300 and the Monitor is 1-210 scale. Both Iron clad included. Comes with seascape base and individual display bases, if you choose not to use the sea scape base. Also includes updated decals and historical booklet, and detailed instructions. Molded in light gray. On March 9, 1862 a naval battle took place off the coast of Virginia that would forever change warfare at sea. This infamous battle is relived with Atlantis Models The Battle of the Ironclads historical diorama scene. This plastic model set comes with a historical booklet describing the Battle of Hampton Roads and the development of the first ironclad leading up to the faceoff. Perfect for a school project. The also come with their own individual display stands and nameplates. This great moment in history changed naval warfare forever and made every other navy in the world obsolete. It was an awesome and dangerous achievement in a and bitter war.