CubicFun"s range of 3D puzzles are fun and challenging to build, and leave you with an attractive scale model that can be displayed in your home or office. The puzzles are manufactured in Guangdong, China, and are sold in 80 countries throughout the world. A fun and challenging 3D puzzle of Cologne Cathedral in GermanyConstructed using CubicFun"s unique slotting systemDifficulty level: 7 out of 10, Number of pieces: 179Construction time: 200 to 220 minutesLength when completed: 35cm Product Specifications:Material Type: EPS Foam BoardProduct Dimensions: 35 x 20 x 31cmItem model number: MC160hItem Weight: 0.65 Kg An instruction booklet is also included which provides instructions on how to construct the puzzle, as well as interesting facts and information about the building.