The Takumi Key Calendar plays upon both the metaphorical and also the innate physical desire to manipulate the mechanical as an effective way to keep track of the days of a month...
Instead of a simple flip calendar, the Takumi Key Calendar appeals to the same tactile desire employed when popping plastic bubbles or pressing buttons...who wouldn't be tempted to place the key into the lock to see what happens?
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"... the innate physical desire to manipulate the mechanical as an effective way to keep track of the days of a month...."
Um, wha?
So...what happens?
viola: simply put, people like to press, push, prod or poke things when offered the opportunity; this product takes advantage of that innate human desire to manipulate to keep track of the date (it's similar to those preschool toys where children are rewarded by sounds or actions when pressing large buttons)