I made some new life lines for myself: Materials: 1/2" Pex tubing, 1/4" neoprene closed cell rubber, Permatex heavy duty headliner and carpet adhesive, high quality duck tape, sunbrella cloth and Robline. Easy to sew the Sunbrella tubes, with a small flap on each end to run the Robline through to cinch up the ends. Cut a 3" strip of neoprene, spray the adhesive on one side and wrap diagonally around the Pex. Cut a 4" strip of neoprene, spray adhesive on one side and wrap diagonally in the other direction. Wrap duck tape diagonally in the opposite direction. Cover with the Sunbrella tube. Very happy with the result! This life line is much better than trying to use a pool noodle core (my original attempt a couple years ago).