Don’t fall for imitations, the Rob Allen Foam Filled 3/8″ Polypropylene Floatline has been tested to over 1000lbs. This rugged line is very strong and just positively buoyant enough to help prevent line tangles when you attach your float line to your speargun. Comes standard with a clip on one end and a swivel on the other. This line would also be perfect for a marker line for lobster and abalone diving.