#57D (Dual Feed 9mm) 1/4" Patchwork Foot (with Guide)
Patchwork foot with guide # 57D differs from Patchwork foot # 37 only in that it has a built-in seam guide along the right edge of the foot. It is therefore particularly suitable for patchwork projects with 1/4 (6mm) or 1/8 (3mm) seam allowances.