They are aimed at individuals aged 14 and up. Ravensburger is the world's largest manufacturer of puzzles, producing them for over 120 years. Ravensburger brand puzzles feature an anti-reflective coating – they are made from patented, thick cardboard with a soft backing. The image is printed on paper with a linen fiber texture, which limits light reflection, facilitates assembly, and makes the image clearer. Additionally, each individual Ravensburger puzzle piece has a unique shape thanks to the patented SoftClick technology and fits only in one specific place. The shapes of the puzzles are diverse due to the handcrafted die-cutting. Ravensburger puzzles are bend-resistant.