The Berkley 3 Way Swivel is designed to be exceptionally strong. It is a great set up for trolling rigs, drop rigs or bottom rigs. Simply attach the swivel to you main line, then leaders of varying length to the remaining two lines, and this swivel will provide strength with very little line twisting, resisting crimping or weakening you line. Made with a black nickel finish and a range of line tests and sizes, you can customize to any need or condition.