National Geo 3D Puzzle Empire State Building 66-Piece

National Geo 3D Puzzle Empire State Building 66-Piece. CubicFun National Geographic Series - CITY TRAVELER, Tips: Follow the instructions on the booklet to build your puzzle. Each puzzle piece is numbered to help you complete the assembly. Assemble with patience and carefulness, do not force to interlock any two pieces/components. Every puzzle pieces have two sides, and can be bended into only one direction, please make sure the correct side of the pieces are faced outward. Assemble every section of the model without any tools, such as knife, and scissors, neither as gluing.