Reese 26002 Dual Cam High Performance RV Trailer Sway ControlThis patented product is Reese Products main technique for controlling trailer sway. Unlike the friction sway control, this approach works to control sway from the start rather than just resisting sway once it's begun. And it works only when needed. The advantage of the dual cam system is its ability to forestall sway in addition to sway resistance. It works to hold down the start of swaying activity while at the same time allowing free and easy