Item Type: Mini Quilt Ruler Material: Acrylic Size: Approx. 138x138x2.5mm / 5.4x5.4x0.1in Gross Weight: 43g/1.5oz Package List 1 x Mini Quilt Ruler 1. Since each round is squared up before the following set is added, the blocks are perfectly square.2. All data are measured manually, and there are certain errors in the measurement results. 1ACRYLIC: Trim tool quilt ruler is made of acrylic, non slip and transparent with a fine and precise scale coating, very durable and lightly crafted. 2EASY TO OPERATE: Mini quilting ruler is precise and repeatable, saving time and increasing efficiency when cutting multiple parts. 3FINISHED BLOCKS: Trim tool quilting ruler can create perfect 6, 8, or 10 inch finished blocks by squaring up each round of strips as they are sewn. 4DIY: Mini quilt ruler is a popular choice for DIY craft lovers and is a great addition to your home sewing machine. 5WIDE APPLICATION: Finished blocks ruler is suitable for quilt sewing pattern design, drafting, fabric cutting, pattern making and other garment design.