Description: PERFECT DESIGN: Industrial sewing machine accessories crimping wrinkle device, flat car crimping presser foot, four-needle one-fold eight-needle one-fold creasing machine. HIGH QUALITY: Made of high-quality steel materials, durable. ADVANTAGE: It is easy to install and use, and its performance is very stable. The wrinkle and the distance before wrinkle adjust the needle pitch on the sewing machine. USAGE: Single-needle flat car, iron wrinkle one drop, or needle bar fall 4 wrinkles, or 8 wrinkles when the needle bar falls. APPLICATION: It is very suitable for craftsmen or DIY enthusiasts to use at home. It is suitable for single-needle flat cars of various brands of industrial sewing machines. It is suitable for fabrics with medium and thin thickness. Specification: Material: Steel A90: 1 Stitch 1 Fold A900: 4/8 Stitches 1 Fold Size Chart: A90: 6.8x5x6.7cm / 2.68x1.97x2.64inch A900: 7x5x8cm / 2.76x1.97x3.15inch Package Includes: 1 Set Lace Fold Device Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!