HIGH QUALITY MATERIAL: The sewing ruler is made of 1/8 inch thick solid acrylic. Durable and transparent. The edges are very clean. Save time and effort: Provide instructions for quick measurements. With a light green marker. You can easily identify the imperial scale. No need to manually cut and measure the fabric. With this template you can easily cut the perfect pattern out of the fabric. For the right and left pointer: the diagonals "mirror" each other, allowing you to cut at any angle with your right or left hand. Easy to Use: The sewing ruler is different from most sewing squares. You can easily cut perfect circles onto the fabric with this pattern. And cut the perfect pattern by folding the fabric in half. For example a quilt or a fan-shaped semicircle. Various uses: multi-functional arc cutting ruler. Suitable for all kinds of quilting, sewing, patterns, sewing patterns and crafts.