It allows the operator to gather more material before depositing it to the side.
;California Residents: WARNING Warn ProVantage Snow Plow Deflector - 80607 This particular model is for use with 50 54 & 60 Straight ProVantage Blades ONLY, Part numbers WAR78950, WAR78954 & WAR78960.Warns ProVantage Plow Blade Side Wall gives the plow operator better control of the material being plowed and helps keep run-off under control.