The Straight Out of Line ruler creates unique four patch blocks with the illusion of curves. Ruler markings make it possible to cut squares from 4 – 10 inch squares – and every half inch in between. The finished size of the pieced blocks is approximately 3/4 inch less than the cut block. nnIt comes with fully illustrated step by step instructions or scan the QR Code printed on the ruler to view a video demonstration. Creative Grids Rulers have a MAP (Minimum Advertised Pricing) Policy. nnThe ruler slides easily over the fabric until pressure is applied. Then, our exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss cuts! nnTotal Size 6in x 24in nnCreative Grids® products are made in the USA and sold in independent quilt shops only.