So the other day I stopped at a yard sale and pick up 4 pullers. One if a bit odd to me. It is a piece of steel about a 1/4 inch thick and a circle about 3 inches in diameter. The center hole is tapped and it also has 2 other holes that are elongated but not tapped. It came with a number of different bolts. Not sure what a puller like this would be used for. Another one I got is a bit odd also. It has a center bolt like most and has a U shaped part where 2 bolts would fit to go into something to pull. But this one at least says something on it about air bags. But that is all it says on what is left of the pack it came in.