Since 1891 Ravensburger has been making the finest puzzles and it's their attention to detail which makes Ravensburger the world's greatest puzzle brand! They use an exclusively developed, extra-thick cardboard and combine this with a fine, linen-structured paper to create a glare-free puzzle image. The cutting tools are designed and crafted by hand. This ensures that no two pieces are alike and guarantees a perfect interlocking fit. Experience the quality!