Made to fit all LOW SHANK Pfaff Sewing Machines. The Ruffler Foot is a real time saver when making anything with ruffles. Gather or tuck one fabric layer and attach it to one or more flat layers in one operation. Can be adjusted to make repeating tucks, narrow pleats, smocking and shirring. Includes instructions. Please make sure your Pfaff sewing machine is LOW SHANK before purchasing.Sewingoodies