DescriptionThis sewing machine seam allowance ruler is made of high-quality plastic and alloy materials, which is durable and practical for a long time use. It is a great partner of your handcrafting clothing process. The surface is smooth and the numbers are really easy to test and read.Features-Color: As shown -Material: Alloy, plastic -Size ruler: About 14.00X6.30X0.25cm/5.50X2.48X0.10inch -Size magnetic seam guide: About 5.50X2.50X0.50cm/2.17X0.98X0.20inch - The seam measuring gauge has 45-degree line for trimming half-square triangles. - This seam gauge is compatible with various types of quilting and sewing machines. - Made of good quality material, which is lightweight and durable to use. - It is suitable for household sewing machines and can be used with fabrics to make seam allowance patterns. - Patchwork positioning ruler, marked before quilting, which can cuts multiple layers and holds fabric flat for straight cuts, accurate without jagged edges.