Where does this corner belong? Do these puzzle pieces fit together? With the number and size of their pieces, frame puzzles are ideal for puzzle beginners from 3 years of age. The puzzle frames that have contour lines of the puzzle pieces make it easy to insert the right pieces and also serve as a practical puzzle mat even when traveling. Sturdy pasteboard pieces guarantee the durability of this toy. Ravensburger frame puzzles are available with 15 or 30–48 pieces and colourful image worlds.