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, giving users a single rope to cover beginners through the super advanced. Its a great all around rope for general boating, The 70 5-section mainline version features AWSA color coded rope lengths from longline through 32off, for beginners through intermediate without all of those excess knots.