MaxPower's 561732B includes a 3-blade set for 46-in cut Craftsman, Husqvarna, Poulan mowers. They replace OEM numbers 152443, 163819, 532145708, 532152443 and 5321638-19. Each blade measures 15-1/2-in L and 2-1/4-in W with a 5 point star center hole. To ensure proper fit, please verify the OEM number of the blade you are replacing matches the OEM number listed in this description. MaxPower blades are proudly manufactured in the USA to meet or exceed OEM specifications.