4th Dimension Concrete Clock
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The cool new 4th Dimension Concrete Clock explores the concept of time and space AKA the 4th dimension. This unique timepiece features a dimensional spiral staircase with hands that continuously go up and down each hourly step as time goes by. It also makes a statement about gravity, since you'll wonder how a solid piece of cement is staying up on your wall. Pricey, but very cool design.