The Redline K9 Standard Bungee Shock Absorber can be used in a variety of ways when working dogs on a tie out or for pole work.But these aren't your average Bungee lines! The Redline Bungee lines are unique and superior to many other bungee lines on the market. We have a special manufacturing process that takes the high quality 5/8" shock cord and inserts it inside tubular webbing. The webbing is then bunched up to allow the line to stretch out and knotted off with the shock cord. Nylon webbing color may vary.