Set of three (3) replacement USA made High Lift Copperhead Mulching style blades that fit Toro Models 730135, 30138, 30317, 30433, 78493, 78494 and 8497 equipped with a 52" cut mower. These blades are made by Rotary Corporation and are very high quality USA made blades. Replaces 56-2390, 105-7779, 51-2235, 51-2315, 44-5480, 106-0626, 108-1127, 27-0990-03, 27-0990, 92-7961, 92-7961-03