The 12.5in x 12.5in Folding Ruler is perfect for sewing, quilting and patchwork.The square ruler features gridlines that allow you to cut squares, rectangles, half-square triangles and even quarter-square triangles with precision and ease.The 12.5in square shape means that the ruler can cut 12in quilt blocks with a 0.25in seam allowance. Due to the folding mechanism, this ruler is not only compact and portable, but can also be folded in half to cut half-square triangles from 2in high up to 8in high, and quarter-square triangles from 2in high to 11in high.Features & BenefitsIncludes 1 Folding RulerAllows you to cut squares, rectangles, half-square triangles and even quarter-square trianglesFolds up for easy storage and portabilityPerfect for quilting, swing and patchwork projects SpecificationSize: 12.5in x 12.5in