Ring swivels provide plenty of movement for your rigs, but if you want even more flexibility then these PTFE Double Ring Swivels are the perfect solution. Polytetrafluoroethylene (PTFE) has one of the lowest friction coefficients of any solid material, which makes it perfect for coating swivels as it reduces any friction between the barrel and the eye, and the freer spinning they are, the less chance there is of tangles, plus can make some rigs more efficient as well when it comes to hooking fish. So not only do these swivels offer plenty of movement as a result of featuring a ring at both ends, they also allow those rings to spin around independently of each other in the smoothest way possible. Great for helicoper rigs, but also have all sorts of other uses. The PTFE Double Ring Swivel comes in size 11 and with eight in a pack.