Thanks for looking at this post. I need help finding a part for my trailer. I have seen it before, and don't remember where. It is a tie down for a w/b or rider. It's basically a semi-flat plate with two ridges on either side that bolts to the trailer floor. There is a strap that attaches to it to ratchet down on the tire. Has anyone used these, or have any pros or cons? Thanks in advance for any help, John.