Tidy-Ups Kits include (1) Tidy-Ups Fender Adjuster and (6) feet of 3/8″ solid braid polypropylene rope. Made from high quality marine grade components, they are quick and easy to use. Simply snap adjuster over your lifeline, railing, or stanchion and set fender height in an instant. It will not fade or kink, and is mildew and rot resistant. A pre-spliced and professionally finished end allows your fender to be tightly secured without hard-to-untie knots.