Although they are often imitated, a genuine Sampo swivel remains unmatched in the fishing industry. Sampo produced the original ball bearing swivel in 1954 to prevent fishing lines from getting twisted and weakened when you're trying to land a fish. The signature Sampo swivel design is patented with the U.S. government for its ability to let fishing line rotate as the lure or fish spins around and around. They are made from stainless steel so they won't get stuck due to rust or corrosion. TackleDirect also has Sampo snap swivels for use trolling or big game fishing. This high-quality terminal tackle ships fast with a satisfaction guarantee whenever you're hooking up lures and leader.