This wooden jigsaw puzzle is cut with our uniuqe geometric piece design featuring an awesome image of the horsehead nebula. It's laser cut from high-quality 3/16" birch and basswood ply. This design is 173 pieces and challenging! With the straight-edge geometric cuts, you can't just start with the border and work your way in. The dimensions of the completed puzzle are about 8"X11". Each puzzle comes within a zippered bag, wrapped in tissue, inside a pretty, glossy box with magnetic closure.