With an abacus you move the pieces around to add up your figures. This abacus is writing on the sand, it’s a karesansui dry garden, it’s an etch-a-sketch, it’s a low resolution screen eleven pixels high by forty wide. Paper squares hanging on taut fishing line. Make one design as you head out the door to work, and another when you come home at the end of the day and take off your shoes. This is a piece that can match your every intent.