Painted aluminum and cast iron. 7" x 5.5" x 3.5" (each). Were fascinated with Japanese electric model toy boats from the 1950s. The motors for these were very true to the full-sized originals and always painted in the mod colors of the day. Weve borrowed the outboards from a couple of these models and created a pair of bookends well-suited to any boating enthusiast. Mounted to heavy cast iron plates that will keep your books in place no matter how choppy the waters become.