This is a brand new aftermarket cutter blade set of 2 for Bush Hog. This is used on models SQ7, SQ840, 1207, 1220 Center & RH, 1257, 1287, 1307, 207, 220 center & rh, 257, 2620 center & rh, 277, 287, and 307. Check out my other items. Be sure to add me to your favorites list.