Large Needle Hole Needle Plate with Line Gauge for Singer Industrial Sewing Machine Classes: 31, 44 95, 96, 191D, 195K, 196K, 241, 245, 251, 281, 331K, 366K, 400W, 451K, 491, 591D, 600W, 660A, 770, 771, 1300 & Centurion 121D. (Use with Feed Dog 26603)