This Maxpower 561714 42" Mulching Blade Set is compatible with Poulan, Husqvarna and Craftsman riders. Designed to chop grass finely, it can prevent the need for raking after mowing. This blade would make a handy accessory for your riding lawn mower. Maxpower 561714 42" Mulching Blade Set: Replaces OEM #: Craftsman, Husqvarna, Poulan 134149, 532134149 21" Length x 2-1/4" Width 5 Point Star Center Hole 0.1500" Thickness 42" mulching mower blade Chops grass finely to help prevent the need for raking after mowing