Bernina old style presser foot. Buttonhole foot #033. Used working foot for models: 530, 532, 534, 540, 600, 610, 640 (not Artista 640), 640-2, 642, 644, 700, 707, 708, 709, 717, 718, 719, 730, (not Artista 730), 731, 732, 740, 741, 742, 744, 800, 801S, 802S, 803S, 807, 808, 809, 810, 811, 817, 818, 819, 831, 832, 840, 841, 842, 850, 900. Price includes shipping to lower 48, return for refund if fails on your Bernina.