This quality blade is a GREAT value. Very happy with the online purchase order which I picked up at my local Sears.
This blade although says it will fit all 21 in. lawn mower did not really fit my EZ dust blocker 7500 series. I installed it with ease but when I started the lawn mower, I hear clicking sounds when the blade rotates. It's hitting an embossed part of the base and I tried to bend the blades to dodge that part but to no avail. I will return the blade.
Had to reorder and continue to wait for delivery again.
The one I bought had this item # but was red and said heavy duty. Didn't last 5 minutes, hit one clump of thick grass, brush and a loose rock and the end bent right over.