Three-dimensional jigsaw puzzle similar to the real estate business sales department of the housing model. Is a three-dimensional puzzle. Mainly three types: paper (paper + EPS rigid foam), wood, crystal, plastic. : Paper colorful, full tone, environmentally safe and cheaper; of wood more expensive, single color tone poor, the edge is likely to have a thorn thorny, and the wood in order to ensure the wood texture, most of need wood paint; crystal plastic, expensive, and most of the knife to repair the edges and interfaces. Paper and wood, do not require any tools. Is a home decor, children's educational, adult extracting DIY products. For plane puzzles more entertaining and interesting, and relatively difficult. Suitable for children over 3 years and adults