Directions for use:
Here's some shots of the tensioners:
With Speer No Tangle guy line:
With Mason Line:
This is the discussion thread for ther group buy on the Line-Loks.
I have been playing around with these tensioners and I have to say that I think their listed rope sizes are a bit off. These are listed for handling 2-5mm line. It works great with smaller line like the Speer No Tangle and cheap Mason Line. I also tried it with the 7/64" Spectra I use a lot which is listed at 3mm. The Spectra line does work with the tensioners, but I can't see using line much bigger than 3mm. I don't think 5mm line would even fit between the jaws.
These things do have incredible holding power.