SARIHOSY Natural Wood Moon Palace Mortise and Tenon Building Blocks Ancient Chinese Building ModelsMortise and Tenon Joints This 3D puzzle adopts the amazing mortise and tenon joinery, which is the main joint method of wood components of ancient Chinese architecture. All pieces in this DIY wooden craft model kit are made to interlock with perfect fit, without using fasteners or glues. The mortise and tenon joint is both simple and sturdy, which makes the classical building have strong earthquake resistance. Unique ArtworkThis 3D model imitate the