The Power Grip Rope and Handle Package features a 1″ Diameter Grip, Durable Aluminum core and 4″ Vinyl End Caps. The 70′ 8-section Mainline features AWSA color coded rope lengths from longline through 39.5′ off(10.75m), giving users a single rope to cover beginners through the super advanced. It’s a great all around rope for general boating, The 70′ 5-section Mainline version features AWSA color coded rope lengths from longline through 32’off(13m), for beginners through intermediate without all of those excess knots.