Vauxhall GM Roof bars fit zafira possibly others with roof rails adjustable width ?

i have a set of GM roof bars, i believe they are capable of holding upto 120kg although this is more than the car is allowed! the clamps on the bars can be adjusted to fit other widths of roof rails, please feel free to come and try the bars to see if they fit your vehicle, the are rectanguler and roof boxes can be clamped to them as they are currently clamped to a roof box 25 i am also selling a zafira tow bar and a V Reg zafira