TALLY INC.
Published on Nov 21, 2015
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PRESENTATION OUTLINE
Together we have invented a ruler that will draw a straight line.this 20cm ruler has a small slid able button that which holds ink.When you slide the ink button from one side to the other, it lets out drops of the whole way across. The small button has a lid that goes on the bottom of the button so the ink does not spill out. There will be a slit across the ruler to let the ink out as well.
Photo by solofotones
All you have to do is pull the button across the ruler! It's as simple as that! Ages 5 and below are not recommended to use the tally ruler. The Tally ruler comes in black, blue, pink, orange, red, and green.
Photo by OUCHcharley
