Industrial Sewing Machine Single-Sided Presser Foot for Top and Bottom Feed Machines Right Edge Presser Foot U192 Model Serrated Sewing Machine Part, Made of Metal for Durability. (Serrated: The bottom of the presser foot has a jagged, saw-tooth shape) Since there is a presser foot on only one side, you can sew without catching on the zipper groove. Please use it with various other ideas. - Model: U192 - Design: Serrated Blade - Material: Metal - Manufacturer: Nippo - Size: Presser Foot Width Approximately 0.5mm Please refrain from canceling after purchase. Thank you for viewing.