A&I Predator 21-3/32" Mulching Blade (Set of 2) - B1PD5073,2 Predator blades provide the flat blade design preferred by most commercial mowers with an extended cutting length for increased cutting efficiency (2) blades for 42" cut. Center Hole 5 point star Length 21-3/32" Thickness .197 Type Toothed Width 2-1/2" Crossed From: HU22004 SEARS / ROPER / AYP 127843 CRAFTSMAN 127843 SEARS / ROPER / AYP 131323 CRAFTSMAN 131323 SEARS / ROPER / AYP 133128 CRAFTSMAN 133128 SEARS / ROPER / AYP 134149 CRAFTSMAN 134149 POULAN 134149 SEARS / ROPER / AYP 138498 CRAFTSMAN 138498 SEARS / ROPER / AYP 138971 CRAFTSMAN 138971 SEARS / ROPER / AYP 138971X431 SEARS / ROPER / AYP 139775 CRAFTSMAN 139775 SEARS / ROPER / AYP 21546095 ARIENS / GRAVELY 302-536 STENS 302536 STENS 340-066 STENS 340-440 STENS 340066 STENS 340440 STENS 496-900 OREGON 496-900 STENS 496900 OREGON 496900 STENS 6422 ROTARY 7-04797 PRIME LINE 7-08500 PRIME LINE 704797 PRIME LINE 708500 PRIME LINE 777 13 41-49 HUSQVARNA 777134149 HUSQVARNA 95-900 OREGON 95900 OREGON 96-900 OREGON 96900 OREGON This is an aftermarket product, not an OEM. A physical address must be provided, NO P.O. BOXES. Thanks for looking!