Hustler OEM Replacement Blade 302-660
FITS MODELS: XR7 Super 7 and Hustler Z
Requires 3 for 54'' deck; toothed blade 
Length 18 1/2'' (469.9mm)
Centre Hole 5/8'' (15.9mm)
Width 2 1/2'' (63.5mm)
Thickness .203'' (5.2mm)