hi hans,ive two in front of me now and one is slightly longer than the other ,so now i dont know which is the correct one.however the longer one is 425 mm from the top to the centre of the bottom hole,that is 150mm wide,the shorter one is 405mm from the top to the centre of the bottom hole,and that is 140mm wide.so i really havent helped at all unless you know the correct length,cheers rick