Pack of 2 - Laser # 91496 Gator Mulcher Blades - 21" Length - Replaces AYP / Husqvarna 127843 / 131323 / 138498 / 138971 / 532 12 78-43 / 532 13 13-23 / 532 13 84-98 / 532 13 89-71 Pack of 2 Laser # 91496 Gator Mulcher Blades OEM replacement blade for AYP / Husqvarna / Sears / Poulan 127843 / 131323 / 138498 / 138498MS / 138971 / 138791IP / 532 12 78-43 / 532 13 13-23 / 532 13 84-98 / 532 13 89-71 Cross over for Oregon # 195-032, Rotary # 6125, Stens #'s 302-400 / 340-178 / 340-182 Length: 21" ; Width: 2-1/2" ; Thickness: 0.187" ; 5 pt. star center hole Requires 2 blades for 42" cut