http://www.knotandrope.com/store/pc/5mm-Reflective-Cord-Black-72p973.htm
All good quality products.
I have used this reflective line. It is tough stuff and installs much more easily than some lines from marine stores of comparable strength. Just don’t have it right now because I wanted different colors and couldn’t easily find that in reflective. That said, I just checked out this site and they have reflective in at least green and red also depending on the strength you want. Thanks for this link!
Good service high quality. I had some 5/16 rope on dock bumpers for 7 years in sun and it’s still great. Got sick of replacing lines on flag pole every 6-9 months from flag store. So I got some good ropes here that should last year’s. Also all stainless steel pulleys and hardware.