The sway bar end links connect the sway bar to your Wrangler. When you drive around a corner, it will naturally want to "roll" or pitch towards the outside of the turn. The sway bar helps stop this "sway" by causing an opposing forced to be placed against your vehicle.
During slow speed off-road driving, it can be helpful to disconnect the sway bar. Disconnect end links make the job quick and easy, and usually don't require any tools. By disconnecting the sway bar links, you're Wrangler will be free to allow the suspension to flex helping you maintain traction.
Rough Country offers easy to install sway bar end links and quick disconnects that are extended to accommodate a lift kit. Rough Country designed these sway bar links to be heavy-duty and long lasting.