Built to last: made from sturdy ABS material that resists wear and provides steady, longlasting support during sewing tasks. Accurate alignment every time: polygonal seam guide features clear measurement markings to reduce errors and keep hems and stitch lines consistent. Stable magnetic attachment: strong magnetic seam guidance prevents accidental movement, holding the guide firmly to your sewing equipment for uninterrupted, precise work. Versatile for many projects: designed to help with fabric cutting, hemming, and clothing ; also useful in craft projects and art classes to improve stitch accuracy. Simple to use and control: clear markings plus the guide's shape make it easy to set and maintain exact seam allowances, speeding up routine sewing and jobs. Practical performance: combines durable construction and reliable magnetic hold to deliver consistent positioning and improved sewing results. Use scenarios: Hemming a dress or trousers: set the guide to the desired allowance and stitch with confidence, knowing the guide will stay in place and keep your hem straight. Quilting or craft cutting: maintain uniform seam allowances across multiple fabric pieces for cleaner joins and faster assembly. Clothing in a workshop or classroom: attach the guide to your machine or metal work surface to stabilize fabric alignment during patching or mending. What you get: a durable, polygonal magnetic seam guide with clear measurements that reduces errors, holds securely, and improves the precision and efficiency of everyday sewing tasks.