Our SAVur Fender Lines have been specifically designed to provide a low profile to secure your boat fender or buoys while allowing for the use of your dock tie up lines. Excess rope can get tangled and teacher ropes will clog your boat or dock cleat making it hard to use multiple ropes. Our SAVur Fender boat lines are made from durable double braided nylon with 24 strands to provide strength and durability over many years. We've designed these to last multiple years and therefore included a mesh poly bag to store your ropes. The ventilated design will allow your rope lines to stay protected and vent any moisture. We stand behind the products we sell. If you are unhappy or experience an issue with your SUVur Fender Lines, be sure to reach out through Amazon and we'll help answer any questions you may have.