I had already purchased 3 of these tie down straps for work and just purchased 6 more. We use them to tie down kit in the back of our vans and also on the roof rack. They are the best straps you can buy - brilliant design very quick and easy to put on and very quick to take off. I have been using cam locks previously but these are excellent. One set was bought to tie down my SUP and surfboard and they are great. They don't ding the boards because of the padding on the back of the metal straps - so you don't need to worry about where the buckle ends up. They never slip.