It floats so it won’t get caught in your propeller. Also work well for safety lines, and you won’t lose them if they get dropped in the water. UV Protected so they won’t fade in the sun Ropes remain soft. They don’t absorb water or moisture so they won’t dry out and become brittle and rough. They can also be stored wet and won’t rot or mildew. Lines are resistant to oils, grease, and saltwater Ground shipping only.