This is named 'Open Ended' from the Gagosian Gallery. It is made of weatherproof steel and measures 149 1/2 x 717 1/2 x 290 5/8 inches. It is very big, especially compared to the people standing inside. This sculpture is really interesting and somewhat different to Serra's other work. I can see that there are two pieces in this sculpture. They both have a convex form that comes to a point, proceeds in the other direction and then repeats. When fit together it creates and open ended piece. I like that from an aerial view the sculpture looks like an eye and has other interesting qualities.