The left compensating foot is used for creating an even stitch along the edge of your material. The left-side foot will stitch an even edge to the right side of the needle.

Guaranteed to fit Singer Sewing Machine Models:
121D, 1300, 191, 195K, 196K, 241, 245, 251, 281, 31, 331K, 366K, 400W, 44, 451K, 491, 591D, 600W, 660A, 770D, 771D, 95, 96