This products unique physical size (4” usable) made it perfect to solve the problem I had. I was able to secure the 2x4 standard under the trailer stake pockets..to keep the side boards from bouncing out. Wanting to be certain before I ordered them I called to clarify. Not only was I treated with professional courtesy and a helpful attitude..the gentleman went ahead and took my order so I wouldn’t have to go back on line. Evidently his warehouse guys took too long to “pic it” for his liking so he next day air shipped me the clips so I wouldn’t have to wait (no extra charge to me). I was truly impressed with not only the product but the people responsible for getting it to me. Thanks again guys. Your efforts were greatly appreciated.