Press the shapes carefully out of the plywood sheets, smooth the edges with the sandpaper and return the shapes into the sheets. With the help of the construction plan you can assemble the kit, starting with part 1 to part 1 a.s.o. Also the picture on the cover helps with the assembly. The sandpaper should be used again, if the connecting joints are too tight. If they are too loose, use wood glue. You can paint the parts before or after assembly.