The Thule Luggage Strap is simply one of the most useful load securing devices we ever used. Just put the strap around the object, thread the webbing through the buckle and pull tight. The strap stays tight and only releases when you press the buckle. Ideal for kayaks, canoes, and many other items.
Once used you will never go back to ropes. They don't stretch, they don't come loose and they will tie down any shape as long as they are long enough. They are also useful for a 1001 DIY jobs such as firmly gripping glued wood together, emergency dog leads and holding your flask on your kayak.
Like everything with Thule, even these, their simplest products, are about quality, they know that the strap is the last vital part of holding that valuable object on your roof safely.