Sturdy, good quality machine feet for industrial sewing machines (not home sewing machines). These feet are perfect for stitching two layers of fabric together. The top fabric or tape stays flat while the bottom layer gets evenly gathered/shirred. The fabric that remains flat is fed through the notch in the foot, while the fabric below the foot gathers evenly. It works best on light to medium-weight fabrics. The wide foot can stitch 3/8" (10mm) away from the fabric or tape's edge, and the narrow foot can stitch 1/8" (3mm) away from the tape's edge. Made in Taiwan.