What line diameter is right for you? - 7/16" diameter for boats up to 24' in length. - 5/8" diameter for boats 25´ to 40. - 3/4" diameter for boats 40´ and over.  Lines stay soft for it's lifetime. Lines are color resistant. Lines will float. Lines come ready to use with triple stitched loops. Lines are resistant to rot, grease, abrasion, and ultra violet rays. Lines are 100% made in the U.S.A.