The Ravensburger 3D puzzle Underwater World combines puzzle fun with a practical desk storage solution. 54 numbered plastic puzzle pieces come together to create a sturdy pen holder with a diameter of 7.7 cm and a height of 9.5 cm. Thanks to the innovative EasyClick Technology, the pieces fit together perfectly without any glue. The colourful design features a vibrant underwater world with a dolphin and colourful corals. This functional 3D puzzle is ideal for storing pens, brushes or scissors and makes for a decorative eye-catcher.