Pebble Eraser
This design of multisided, edge-shaped eraser is easier to use then most conventional erasers due to its ability to erase narrow and small areas where most erasers cannot reach. After continuous usage, it becomes rounder like pebbles along the shores.
It won the Gold Award in 2009 Taiwan International Design Competition.
Available in 3 colors. Packaged and sold individually.
Buy them here.
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