This is a 2011 Leaf Muhammad Ali proof. It is about 1/4" taller and wider than a standard card. It is printed on plastic / acetate stock and has the red refractor finish on it. Given that it's a pre-production proof, it does not have an actual autograph or event-worn piece on it, nor the serial that the regular version has. Would make a great complement if you already have the pack-issued version or a great placeholder if you don't. The back is silver and has a full refractor finish on it with a slightly etched surface. I have several of these available, so please check out my other listings for more.