ORIGINAL EMAK KNOB C72004097 G 55 VBX 4-in-1 Lawnmower Cutting Height Adjustment System G 55 VBX 4-IN-1 Cat. 2010 Lawnmower Cutting Height Adjustment System G 55 VBX 4-IN-1 Cat. 2011 Lawnmower Cutting Height Adjustment System G 55 VBX 4-IN-1 Cat. 2012 Lawnmower Cutting Height Adjustment System G 55 VBX 4-IN-1 Cat. 2013 Lawnmower Cutting Height Adjustment System