Features Includes 2 commercial mulching blades for a 42" cut. Fits Craftsman models manufactured by Husqvarna. Does not fit Craftsman models manufactured by MTD Replaces OEM #'s 127843, 138498, 138971, 134149, 138971X431, 532138971, 532127843, 532138498 and CMXGZAM110136 Each blade measures 21" long x 2-1/2" wide with a 5-point star center hole 5-point star center hole All MaxPower blades are sharpened during the manufacturing process and then powder coated for your protection. This coating will come off during the first cut to reveal a precision sharpened blade Product DescriptionMaxpower 561713XB 2 Commercial Mulching Blade Set for Many 42 in. Cut Craftsman, Husqvarna, Poulan Mowers Replaces OEM #'s 138498, 138971, 532138971, 532127843, 532138498