Needs cleaning. Feed dog 20159 has 16 teeth. For use with needle plate # 20160.
Note: there is a small chip in 1 of the teeth. Selling as is. For Singer industrial models 31-15, 44, 95 and 96 class, 196K, 241 and 251 class, 245, 331K, 400W, 451K, 600A, 600W, also many 31 type--Brother, Consew, Juki, Rex and most other lockstitch machines.