Diameter 1-1/2″. Length 600′. Excellent for anchor lines, mooring, and dock lines because this fiber absorbs sudden shock loads that could snap ropes made of other fibers or cause damage to boat fittings. 4-stage nylon has excellent resistance to abrasion. Can be stowed wet. Rot resistant and not damaged by oil, grease, gasoline, mildew, marine growth, or most chemicals. 3-strand twisted nylon is spliceable.