The Eames Office designed a model house kit in a ¾-inch scale, wholly furnished with miniature Eames furniture and accessories, for the toy manufacturer Revell Company in the late 1950s. The model house kit included a system of modular units of grids and panels made from injection-molded plastic. Charles and Ray designed the rooms and spaces in varying sizes to give ultimate flexibility. The house could be built into one, two, three, or four-level structures. The Office made prototypes for the kit, but it was never produced.