A brand new ravensburger 3d jigsaw concept using the latest puzzle technology from germany'. '.strtoupper('t')his puzzle uses unique hinged plastic pieces, which slot together to build a sturdy and strong building'. '.strtoupper('n')o glue required'. '.strtoupper('t')he big ben building 3d puzzle has got 216 high quality plastic pieces and measures 41cm tall when complete'. '.strtoupper('e')ach puzzle piece is printed with a number on the reverse side, so you can either assemble the puzzle by eye, or just by following the numbers'. '.strtoupper('b')ig ben building 216 piece 3d puzzle comes with a printed base board, so it can be displayed on a shelf or table top'. '.strtoupper('e')njoy some of the world's most famous buildings in your own home.