Includes (2) 3-N-1 style blades for many 42 in. cut Craftsman, Husqvarna, and Poulan mowers Replaces OEM #'s 139775, 532139775, 594893101 Each blade measures 21-1/16 in. L and 2-1/4 in. W 5 point star center hole Manufactured to meet or exceed all OEM specifications 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.