Ugears 3D wooden puzzle date navigator is an interesting mechanical calendar with a beautiful steampunk planetary mechanism The date navigation helps identify the day of the week for each date from 2017 to 2044BEAUTIFUL DECORATION AND MEMORABLE GIFTS Surprise your family friends and colleagues with an original mechanical calendar navigator built with your own hands This adult building kit is designed to bring joy and extend the limits of your knowledge Our wooden craft sets for children become stylish masterpieces for home and officeMaterial woodAssembly required