pic 2 is a pretty good one. Basically there is two 25mm flat alluminium (x2) pop rivetted top and bottom which then slide over the awning arm, they have a hole in them drop a stainless bolt though tighten with a wing nut. Just a tip because of the gap between the leg and the arm I pop rivetted two bits of channel to hold the 900mm length solid away from arms otherwise there would be movement when line is being used. hope this helps the van is packed up with a cover on so more picks aren't on for awhile.