This is a complete kit that allows you to install 2 roof top bars, with two sets of pop top gutter extension roof brackets. Everything you need to start carrying some load on your roof. Handy for solar panels, surf boards or anything else that can be secured on two points.
We strongly recommend you instal our gas lift assist kit, if you plan to carry load on your roof. We sell three different options, depending on how much load you plan to carry, they can all be found here