Rotary 12273 PK3 Blades Replaces: Toro 110-6837-03, 112-9759-03 Fits: Lawnboy 81271; Toro Time Cutter Z, Z5000, 3 for 50", 74370, 74372, 74373, 74374, 74375, 74376 Length 17-1/2; Width 2-1/4"; Center Hole Diameter 5/8"; Thickness .16"; Set of 3