Makita® 21” Lawn Mower Blade (191D52-7) installs quickly and easily with one-bolt installation. It is engineered to cut cleanly and create fine clippings to help promote lawn health. The lawn mower blade tilts toward the front of the mower to prevent double cutting, providing improved run time. This is a direct replacement for the original lawn mower blade. For use with Makita® 18V LXT® X2 (36V) Cordless Lawn Mowers (XML07, XML08, and XML09, sold separately). With zero emissions, lower noise and reduced maintenance, 18V X2 (36V) LXT® Cordless Lawn Mowers are a welcome solution for efficient grass cutting.