Bing and Bong live inside the home planet. Their living room is warm and cosy and contains all they need to exist; food, toys, books and the sofa, which also doubles as their means of travel. . The Sofa is a masterpiece of technology, its comfy cushions conceal a wealth of gadgetry. The Sofa is propelled to the surface of the home planet on a powerful brass elevator. It emerges into the brass hand of a giant catapult. A strong elastic rope is attached to the back of the Sofa and it is launched into space.