Daldorado DalFLEX™ DALFLEX-LLC-13 13" Lane Line Extension - This 13" black silicone-wrapped flat 316SS ribbon extension with an S hook is securely fixed to a DalFLEX™ lane line anchor unit. It folds back into the base to be stowed away for later use. Made for easy installation and use, this extension will help ensure the best service life possible.