2 x Foldable load stops for T-Track bars - Folds flat to reduce windage. Thule foldable 22 cm high 315 load stops are designed specifically for Thule bars and fit directly into the T tracks on the top of the bar. They have the added advantage of being able to fold by 90 degrees to reduce wind resistance as much as possible when not in use. They will also fit other makes of roof bars with a maximum 21mm wide T-Track slot. For most load carrying applications two pairs of load stops are recommended.