300 ft of polypropylene MFP double braid 3/8" line. Fast and efficient - 2 lines deployed simultaneously and clipped. Easily retrieved and repacked. Versatile, portable, no installation. No laundry hampers! Excellent for solo boaters and those in search of low stress stern tying. Here is a link to a demonstration video: https://www.youtube.com/watch?v=-ap0WuYreOs&ab_channel=MarinaFierz