Dispense, Organize, & Store Your "Wrist" Type Leader Spools. SK-3 Holds Up To 3, And The SK-5 Up To 5 Spools Of The Most Popular Types Of Leader Material. Simple To Use - Loads And Unloads With A Twist Of The Lever. Convenient Suction Cup Mount Means No Holes To Drill, Easily Movable, And Permits Use In Any Position - Horizontally, Vertically, Even Upside Down. Versatile - Keep Many Different Sizes Of Leader Material Organized In One Location. Works With All Popular 50 Yard Spools Including; Deep Blue Premium ULTRACLEAR 75, Berkley, Calcutta, Stren, Sufix, Team Fish, and Many Others.