These PTFE coated ring swivels have a wide variety of different applications when constructing rigs, and are available in either a size 8 or a size 11. The size 8 Ring Swivel is great for adding extra movement to your hook link, when fishing it in conjunction with a system such as the Lead Clip, which it fits into perfectly. When fishing helicopter rigs, the size 11 Ring Swivel is the perfect choice, as the ring allows it to rotate more freely on your line or leader than a conventional swivel does.