Toro OEM 146 3406 HI-FLO Mower Deck Blade was created for the purpose of giving a little extra lift to that damp heavy grass that seems to want to fall short of your discharge chute. The OEM 146 3406 HI Lift Mower Blades have an added lip that increases air volume and promotes air circulation in your deck, resulting in a cleaner mowing experience without clumps. This feature varies in effectiveness depending on the type of grass you have. This Mower Deck Blade was made to OEM Specifications to fit Toro Grandstand 32" HDM series (ONLY MODEL 74532). Please Refer to the Special Notes, References and The Model Fit Chart below to ensure a proper fit. Click on the Part Numbers to be redirected. NOTE: Due to a Serial Number brake that could overlap Models, The Toro 146-3406 does require the Round Shaft/Blade Arbor Assembly with a Spline Insert. Refer to the image above for an accurate Comparision. Toro OEM 146-3406 is made Exclusively for Model 74532 and is not recommended for usage in any other 32" Models. COMPATIBLE BLADE REFERENCES 146-3404 - Low Lift Blade 146-3403 - Medium Lift Blade 146-3407 - Atomic Blade 146-3405 - Mulching/Recycler Blade COMPATIBLE PART REFERENCES 116-3344 - Spindle Assembly (Click on part number to view associated parts) 109-9220 - Blade Bolt Specification Product Number: 1463406 Brand: Toro Length: 16.25” Width: NA Height: NA Weight: 2.096 LB (0.951 KG) Model Fit: 74532