When working with fabrics there are bound to be little imperfections. By squaring up each unit as you complete it, you can ensure that the finished blocks will be perfect when sewn together to allow your quilt top to lie flat. Use the vertical, horizontal, and diagonal lines to square up any 16 inch pieced, appliqued or embroidered block. The Ruler has 4 cutting edges, all with 1/4 inch seam allowances for a perfect finished 16 inch block. Ruler has clear 1 inch and 1/2 inch markings for accurate measuring. The Ruler is made of heavy gauge acrylic and is laser precise.

1/4" Lines Provided for Seam Allowance. Laser Precise. 1/8", 1/4", 1/2" and 1" Lines. Heavy Gauge Acrylic. 45 degree line.

Graduation Range: 1/8 Inches. Style: Square. Color: Clear. Brand: Quilt In A Day. Material: Acrylic. Date First Available: April 29, 2008. Manufacturer: Quilt In A Day. Item Weight: 1.27 pounds. Is Discontinued By Manufacturer: No. Best Sellers Rank: #72,195 in Arts, Crafts & Sewing. Customer Reviews: 4.7 out of 5 stars 329 ratings 4.7 out of 5 stars. : B0018N1YZS. Item model number: 2005. Product Dimensions: 16 x 0.05 x 16 inches.