A self-assembled wooden calendar puzzle with precise date indication ranging from 2018 to 2040. One-star-level difficulty, ideal gift and hobby for any beginners new to building mechanical sets.

Find Your Own Time Zone.

• 【Decorative Agenda】Elegant design with practical function. Adjust the disk and set your own time zone, including year, month, day and week. Always a delight to eyes, perfect room decor for your home or office.
• 【Easy to Assemble】Only 1-star -evel difficulty with 52 pre-cut wood pieces. 1~2 hours of relaxing building fun will release your pressure and inspire more creativity. Perfect for beginners as a building toy 101.
• 【STEM Principles】Satisfying and educational building experience. Learn more about STEM concepts while building up the mechanical structures step by step. Welcome to the fantastic mechanical world!
• 【Ideal Gift& Hobby】Gift for all. Whenever it’s birthday, anniversary or holiday, or even to spend a quality time with family, this is a perfect choice to express your love.

About this item

• 【 Beautifully Designed Perpetual Calendar】Everyone faces with the question when planning activities during a week: what day of the week it is going to be. Usually we look at a smartphone or a datebook. Surprise your family, friends and colleagues with an original mechanical Perpetual Calendar
• 【Operation Way】Make it easy to view the date,Imaging future day,Set the year and the month to find out what day of the week it is going to be. Never get lost in time again.
• 【Natural Wood Finish】ROKR DIY models are made with laser-cut plywood and easily pop them out of the frame and put them together with our English instruction, the pieces are durable, ecofriendly, and easy to assemble. Notice: Wax are not included in the package because of transit restric
• 【Meaningful Education Project】This laser-cut wooden puzzle will bring hours of fun putting it together to make a 3D calendar. The perpetual calendar can correctly calculate days of future / past dates. The calculations are done mechanically using a sophisticated gearing system. It will definitely standout on your desk or working space
• 【Wonderful Gifts】Cool gift for those mechanically inclined. A good choice for someone who is DIY lover. Great Choice as birthday gifts, valentine's Day gifts, christmas gifts