Description: Material: Made of transparent green acrylic, it is clear and durable, has long life, easy to make your style through the template. The seam measuring gauge has a 45-degree line for trimming half-square triangles and a 1/4" mark point for binding. This seam has 16 incremental holes, the sewing ruler can help you measure the seam allowance from 1/8” to 2”. Multifunction patchwork positioning ruler, marked before quilting, which can be used with wheel cutter or sewing machine. Also can be used with fabrics to make seam allowance patterns. DIY craft tools, it is compatible with most types of quilting and household sewing machines. Fit for beginners, pattern designers, dressmaker, helps to creative own unique shape and ensures your designs look beautiful and professional. Specification: Material: Acrylic Size Chart: Size: approx.13.9x6.3cm/5.47x2.48inch Package Includes: 1 Piece Sewing Ruler Note: Please allow slightly error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Wish you a wonderful on-line shopping!