#37N - 1/4" Presser Foot for Bernina A 1/4" Presser Foot the outer and inner edges of the foot are 6mm (1/4") and 3mm (1/8"). from the center of the needle. This foot is meant specifically for patchwork and is ideal for projects with 3mm (1/8") or 6mm (1/4") seam allowances. This presser foot is a 'New Style' foot fit Bernina Sewing Machines:B215, Activa 125, Activa 130, Activa 125S, Activa 135, Activa 135S, Activa 140, Activa 145, Activa 145S, Activa 210, Activa 220, Activa 230, Activa 230PE, Activa 240, Artista 165, Artista 170, Artista 180, Artista 185, Artista 200, Artista 630, Artista 640, Artista 730, Aurora 430, Aurora 435, Aurora 440QE, Aurora 450, B330, B350, B350PE Patchwork Edition, B350SE Best Friend, B380, B530, B530SE, B535, B550QE, B555, B570QE, B560, B580, B590, B720, Virtuosa 150, Virtuosa 153, Virtuosa 153QE, Virtuosa 155, Virtuosa 160, Virtuosa 163