The Korda Size 11 PTFE COATED SPINNER RING SWIVEL has been purposefully designed for creating the popular Spinner/Ronnie Rig. It uses a Polytetrafluoroethylene (PTFE) coating which is a synthetic polymer and has one of the lowest coefficients of friction of any solid. This makes it the perfect coating for our swivels as it reduces friction between the barrel and swivel eye, allowing them to rotate freely, this in turn will improve the hooking efficiency of your Spinner Rig. Having the most efficient rotation will increase your rigs mechanics and help them to perform at their optimum level. The PTFE COATED SPINNER RING SWIVELS will be added to our range of end tackle and will not replace our existing SPINNER RING SWIVELS.