Mower Blade 19.50" long x 2.50" wide x 1.12"ID center hole, outer holes .37"ID on 2.25" center. CW. Length measured diagonally. 9849580 Replaces GB213368, LB705889. This is part number LB705889.
Mower Blade 20.50" long x 2.50" wide x .75"ID center hole, outer holes .38"ID. CW. 1720679 supersedes to 1687014. This is part number 1720679 new OEM Simplicity.
Mower Blade 18.12" long x 2.50" wide x .75"ID hole. CW. New OEM. Serrated / Toothed Lift Wing. New OEM Simplicity part number 1721086. Blade stamped 1721086 Simplicity.