Krypt 654 pieces puzzle is top quality and measure 70 x 50 cm when completed.Ravensburger's puzzles are made to fit precisely - no matter how large or small the puzzle, each is precision made so that every piece fits perfectly, without frustration. Best of all, every single piece in this puzzle is unique, no duplicates and no frustration. Jigsaw puzzles help support a child's development as they play, building skills such as concentration and creativity, and are great fun for adults, providing a great experience whether you're puzzling by yourself or with a group.