A. Effective functions: The powerful anti-magnet can fix the magnetic guide plate on the needle plate of the sewing machine within a few seconds, and it can serve as a sewing ruler and a guide plate. B. Waist ruler: The length ranges from 0 to 60 inches and 0 to 150 centimeters. There are centimeter scales on the back, and both the inch and centimeter scales are printed accurately. You can use both sides for measurement as needed. It is a useful sewing tool and can be used for sewing, cutting, measuring the body, waist circumference, or any curved surface. C. Measuring ruler and guide plate magnet: The measuring ruler is about 5.5 inches long, about 2.5 inches wide, and 0.3 centimeters (0.1 inches) thick. The magnet of the sewing machine guide plate is about 1 inch wide, light in weight, easy to carry and use, bringing more convenience to life. D. Powerful magnet: It is an ultra-strong magnet locator for sewing machines, with strong magnetism and is a ferromagnetic body. It can be used for flatbed machines and synchronous machines, which helps with straight-line sewing in flat sewing to achieve an aesthetic effect. It can also be used for double-needle tape pulling to fix the position of the tape and prevent deviation, etc. E. Universal sewing accessories: The quilting ruler and the magnetic seam guide plate are compatible with most quilting machines and sewing machines and their models. F. Color: Green G. Material: Metal + Acrylic H. Package contents: - 1 seam allowance ruler - 2 magnetic sewing guide plates Only the above package contents are included, and no other products are included. I. Notes: The color of the item may vary slightly from the actual product due to light and different displays. The measurement error is allowed to be +/- 1 - 3 centimeters.