Product review (2 stars): Get Out Your Tweezers
I bought and then replaced with a plastic coated line.  I use it to connect my grill to a quick disconnect propane source from my home.  This item is flexible but it can kink.  Worst of all, I have gotten two slivers from this little gem when I curled it up to stow away.  I suspect if you are burying a line, this item might do the trick.