The ideal hobby whether this is your first 3D puzzle or you are looking to expand your existing craft collection, you've come to the right place. This wooden perpetual calendar puzzle will keep you busy as you put the pieces together. You and your family will enjoy building this model perpetual calendar with our 3D wood puzzle. Once assembled, you are able to set this calendar and use it as needed. Wooden puzzle kit this DIY perpetual calendar puzzle kit will help you create a mini calendar that is able to last from 2018 to 2040. It's a masterpiece that you can be proud of. After the assembly, utilize the calendar as it was used many years ago. Educational materials if you or your child is interested in engineering, they'll love this astonishing wooden perpetual calendar puzzle that helps promote reasoning, logic, imagination and other key factors that affect the mind. Children will love this hands-on, imaginative introduction to the world of engineering and building your own. Quality plywood our punch-out sheets are high-quality and fun to assemble. The fact that our assembly supplies are made of non-toxic plywood that is safe for the environment is an added bonus. A great gift finding a good gift can be hard, especially if you're looking for one that can also help boost a child's education. Our 3D wood puzzle is great for boys and girls who like to engage in stem learning with the finest interactive materials available. Give for a birthday, Christmas or any special occasions. Recommended for ages 14 plus.