TBH they look factory they are not plastic well not the ones I have they are either steel or alloy
they are very heavy for their size you would never be able to break one imo.
Yeah run some dummy wires and check first ,you may find a better one and
maybe fit that to either the front or back of your camper,so it wont be wasted.
slightly cheaper link, good feature is the stop line
http://www.ebay.com.au/itm/170-Car-R...8AAOSw~otWe2Co