330-516 Stens Mulching Blade compatible with John Deere M145516

Description 330-516 Stens Mulching Blade compatible with John Deere M145516.  Fits John Deere GX255, GX325, GX335, GX355, LX280, X320, X340, X360, X500, X520, X530, X534, X540, X590, X729, Z425, Z435 and Z445 riding mowers.  Length 19", center hole 3/4", thickness 0.236", width 2-1/2".  Heavy Duty = true.  Made by an OEM supplier.