Paper calendars last only a year but this Puzzle Calendar lasts a lifetime. If you liked playing with blocks when you were a kid, you’re going to want this calendar on your desk now that you’re grown-up.
It’s fun to find different ways of building it up. To get you started the Perpetual Puzzle Calendar comes with instructions of seven different examples of how you can put it together.
Note that at the beginning of each month you will be forced to do a bit of puzzling; otherwise the dates and the days of the week will be out of whack.