Double Groove Hinged Welting Foot For Singer 111W / 211W Needle Feed Type Industrial Sewing Machines. Used to achieve efficient and consistent Double Welts with a variety of fabrics, including canvas, vinyl, leather, Sunbrella, etc. Available foot groove sizes for welt/cord : 1/8", 3/16", 1/4", 3/8" Fits Singer models 111W100, 111W151 & 211W151 needle feed type machines. Also used for Singer Classes 153W100, 153W102, 402W.