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Quote:
rollers work both ways
http://www.coloradocoyoterollers.com/
this is a site for research I had bookmarked. YOu most certainly can make your own.... YouTube has several DIY projects....
good illustration
The deal is its a pipe within a pipe with aircraft cable strung inside. If there has to be gaps I would put a smooth vertical post in
this would be for areas where you cant fortify with electric.
deb