Qualitative Materials---This sewing machine presser foot is made of high quality steel material, which is eco-friendly, and sturdy to use. Keep Fabric Flat---This sewing machine presser foot can hold fabric flat as it is fed through the machine and stitched. A Great Invisible Zipper Foot---With this invisible zipper foot, you can insert invisible zippers very easily in a snap. Wide Range of Application---This invisible zipper presser foot universally fit for most industrial flat bed sewing machines to sew fabric including leather, laminated, plastic, leather, etc. A Great Replaceable Sewing Machine Part---This invisible zipper presser foot is a fine presser foot replacement for broken presser foot or to improve your sewing machine.