The paper grid is a pattern for sewing and cutting. It is printed on a roll of paper that enables you to make as many or as few triangles as you need with 2 different fabrics. Simply select your fabrics, place them together, place the paper on top of the fabric, pin the layers together, sew on the dotted lines and cut on the solid lines. You'll have half squares in a jiffy! This package contains one 50 foot paper roll. Makes 660 half-square triangles. Finished size: 2.75 inches. Made in usa.