I sent an email. They said 89 cents and they would ship anywhere in US for free. That's a heck of a lot less then I'm spending for J's. I think I am going to try them out and see how it goes. From what I can see they would be a good cost saver for the small runs off of the mains. I don't think I would use them for a heavy bundle.
If anyone out there knows more about them, let me know.
Have any of you used the product Com Dangles? Their web site is http://www.comdangles.com . They appear to be for low voltage cables only and are very inexpensive. It is plenum rated and UL listed and made of plastic which would not damage cables. The thing that caught my eye is that they have UL approved installation instructions indicating they do not have to tie off to the ceiling grid below. That would be a huge cost savings in installation time, and if they are less expensive to begin with, this may be a great way to go. I have seen them at a couple of jobs in San Jose and Mountain View. They seem to work well and look good.