The steel piece is 2"x1.5". The window glass is 3" long by 1" high. The glass piece has sharp edges and has a tan/darkish tint to it when held up to light. The 5th/last picture shows a box in which the specimens are in inside of a gamma spectrometer machine, checking for radiation at a German university. There is no radiation/no signal coming from the pieces, THEY ARE SAFE other than the sharp edges.If you have questions please message me. Comes from home of Iraqi War Combat Veteran. We will do everything we can to make sure you get what you expected from the competency of our listings and will work with you to make sure you are satisfied. We are small operation, two veterans with 3 kids. We sell a variety of different things. Feel free to ask any questions you may have. The item "World Trade Center Recovered Steel Composite Piece & Glass 9/11 Ground Zero" is in sale since Thursday, March 26, 2020. This item is in the category "Collectibles\Historical Memorabilia\Fairs, Parks & Architecture\Buildings". The seller is "disabled_army_navy_vets" and is located in Viroqua, Wisconsin. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia, South africa, New Zealand, Egypt, Reunion.