The ones with stoppers have grooves or indentions on the inside of the circles on each end. The ones without are just smooth circles on each in. I hope this helps. I was trying to figure out the best way to word it but I am still half asleep.
Thanks but still unsure - I only have one type (as far as I can tell) does the groove protrude? and not continuous. is there a functional difference between the two?
Comments
http://brickowl.com/files/image_cache/larger/lego-dark-stone-gray-steering-link-6-studs-long-with-stoppers-32005-2-910520-50.png
to see what the version with stoppers looks like.
Thanks but still unsure - I only have one type (as far as I can tell) does the groove protrude? and not continuous. is there a functional difference between the two?
Graham
I have no stoppers then - cheers!