Omnigrid 12.5" x 12.5" Square Ruler
This 12-1/2 inch square features easy-to-read black and white markings printed in 1 inch grids marked in 1/8 and 1/4 inch increments.
This 12-1/2 inch square features easy-to-read black and white markings printed in 1 inch grids marked in 1/8 and 1/4 inch increments.