Item Type: Mini Quilt Ruler_x000D_ Material: Acrylic_x000D_ Size: Approx. 138x138x2.5mm / 5.4x5.4x0.1in_x000D_ Gross Weight: 43g/1.5oz 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.1 x MiniQuiltRuler1. Since each round is squared up before the following set is added, the blocks are perfectly square._x000D_ 2. All data are measured manually, and there are certain errors in the measurement results.