Approximately 3'x4' (piece is slightly larger, read on) piece of woven steel mesh, the weave is about 1/2"x1/2", making a very tight grid pattern that would be hard to breach. The steel has a very thin black plastic coating making it potentially a good, weather resistant material outside. Could add some industrial vibes to your interior design project or be a great security panel on your property. Priced at around $5/square foot.