Cabela's Premium Coastlock Ball-Bearing Snap Swivels - Black Reviews:
I use them for my offshore trolling and bottom rigs. They permanently attached to my regular rigs and have lasted several seasons. Just a rinse right along with the rod and reel and an occasional wipe with some oil and they keep on going. Caught fish from 2-400 lbs on them. Compared to the competition, these are the real value.