【Adjustable Smocking Pleating Function】：This adjustable smocking pleater machine features adjustable webbing width, lateral quilting position, and double-layer pleating foot design. The upper layer creates folded pleats while the lower layer keeps fabric flat, delivering professional and neat pleating effects easily. 【Wide Application & Standard Dimensions】：With a maximum fabric inlet width of 53 mm, groove width of about 53.3 mm, and groove thickness of about 2.5 mm, this wide pleating foot fits various fabric thicknesses and sizes, making it highly versatile for different sewing projects. 【Heavy-Duty Steel Material for Durability】：The pleating presser foot is constructed of sturdy steel, which is wear-resistant, stable, and long-lasting. It is specially designed for industrial flatbed sewing machines, ensuring reliable performance under frequent use. 【Easy Operation for Perfect Stitching】：This auxiliary presser foot helps users sew straight lines and achieve clean, beautiful seams. It effectively guides topstitching and decorative sewing, making it extremely friendly and practical for sewing beginners. 【Professional Sewing Accessory for Efficiency】：As a practical industrial sewing machine accessory, it supports multiple professional sewing processes, greatly reduces operation time, improves sewing quality, and significantly boosts overall work efficiency.