Features: 17 Incremental Holes: Available to help you measure the seam allowance in 1/8", 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 11/8", 11/4", 13/8", 11/2", 15/8", 13/4", 17/8" and 2". Made of high quality acrylic material, 2mm thick that break-proof and durable for long service life. Come with 2 magnetic seam guides can locate the fabric when sewing and can create long, straight seams on quilts and garments. Strong magnetic guide can stick firmly to keep the edges flat, increasing your efficiency of work. Useful tool always is well-made, clear scale marks works well in dark color cloth. A 45trim line for binding and trimming shapes. This seam guide rule is compatible with all popular quilting and sewing machine brand models on the market, which can meet you and your family's daily sewing tasks. Specification: Color: Blue&Yellow, Yellow, Transparent, Green (Optional) Size: 5.5x2.5in/13.8x6.3cm Package Size: 16x8x1.5cm/6.2x3.1x0.6in Package Weight: 71g/2.5oz Packing List: 1 x Ruler 2 x Magnet