Swivels with rings help create rigs with a lot of movement, but if you are looking for even more flexibility, PTFE Double Ring Swivels are the right choice for you. Polytetrafluoroethylene (PTFE) boasts one of the lowest coefficients of friction among solid materials, making it the perfect choice for swivel coating. This material reduces friction between the barrel and the ring: the freer these two elements can rotate, the less likely tangles are to form. Thanks to this type of swivel, some types of rigs also become more efficient in terms of bite detection. They not only offer greater movement due to the presence of a ring at both ends, but also allow these two rings to rotate independently of each other as smoothly as possible. Perfect for helicopter rigs, they are also used in many other setups. PTFE Double Ring Swivels are available in size 11 in packs of 8 pieces.