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. An instruction leaflet is also included which provides instructions on how to construct the puzzle. A fun and challenging 3D puzzle of a London Double Decker Bus Constructed using CubicFun"s unique slotting system.Difficulty Level: 2 stars ; Number of Pieces: 66 Construction time: 50 to 60 minutes Length when completed: 19.7cm Product Specifications: Material Type: EPS Foam BoardBox Dimensions: 16 x 1.8 x 22 cmItem Model Number: S3018hItem Weight: 0.117 Kg A double-decker bus is a bus that has two storeys or decks. Red double-decker buses are used for mass transit in London. Double-decker buses are also used in other cities in Europe, Asia, and former British colonies and protectorates such as Hong Kong, Singapore and Canada.