Maxpower 561713X Commercial Mulching 2-Blade Set for 42 Inch Poulan/Husqvarna/Craftsman Replaces 138498, 138971, 138971X431, 532138971, and Many Others Fits 42" Cut Poulan/Husqvarna/Craftsman rider Set includes 2 blades Replaces OEM no.134149, 138971, 138498, 127843, pp24003 Proudly Made in USA Measures 21" Long by 2-1/2" Wide 5 point star center hole