Adjustable Hinged Zipper Foot #161127 - For low-shank home sewing machines. This foot makes it easy to install zippers. You can sew on either side of the foot without removing the foot from the machine. Loosen the spring-loaded screw in the rear and move the foot to any position best suited for your project. You can get as close or as far away from the needle position as you like by lining up the zipper teeth to run against the side of the presser foot, You can customize the zipper seam width. Before using this foot, check your sewing machine is low shank type. Part Numbers: 161127, BP1805, 706L,