Invisible Zipper Foot With Long Slot Needle Hole And Center Guide For Industrial Needle Feed Single Needle Sewing Machines. A perfect zipper every time, easy to use. This foot will sew all concealed or invisible polyester or nylon zippers. The zipper teeth glide through the grooves on the bottonm of the foot. The foot is hinged for easy sewing over seams and uneven surfaces. This invisble zipper foot will fit industrial needle-feed (compound feed) type sewing machines from Brother, Consew, Juki, Mitsubishi, Singer, Tacsew and many more. Fits Brother DB2-B790, DB2-B791 Fits Juki DLN series including DLN-415, DNL-5410, DNL-9101. and many more.