Quilter’s Rule 12” Right TriangleThe Quilter’s Rule 12” Right Triangle is specially designed as an ideal measuring companion for use with arotary cutter. Simple and easy to use, this triangle is great for making 45 degree triangles and diamondsfrom 1” to 12”.Ca re of Ruler: Clean with soap and water or a non-ammonia glass or window cleaner.How to Use:1.) Using the base (the edge opposite of the 90 degree corner) of the Right Triangle, mark or cut witha rotary cutter across your fabric for a straight edge.2.) Simply slide the Right Triangle down from the mark or cut just made to the desired triangle sizeand mark or cut along the two outside edges to complete your fabric triangle cutout.For Right Angle Triangles on the BiasPlace the Right Triangle with the top 90 degree corner in the bottom left corner of your fabric. Mark or cutthe desired triangle size along each of the outside edges of the Right Triangle. Slide Right Triangle downat a leftward angle so the base of the Right Triangle is at each of the marks or cuts just made. Mark or cutalong the base of the Right Triangle completing your fabric cutout,For 45 Degree DiamondsFold your fabric in half. Using one of the 45 degree diamond corners of the Right Triangle, place thedesired diamond size on the fold of your fabric. Mark or cut along the two outside edges of the RightTriangle. Unfold your fabric diamond cutout.