Triangular metal strut spacers with three protruding studs and a central circular opening. Provides 2 inches of height for front leveling on factory Silverados. Came off of one before it was sold. Supposedly fits 07-18. I have no information about the brand/model and I don't see anything stamped on it. I'll keep looking and update this post if I get more info. Ask any questions you need and I'll try and answer them. $30 for the set and would consider trades.