A Hyattsville ironworks helped create an art installation on police violence currently on display on the National Mall through September 4.

Mejia Ironworks, which works in steel, stainless steel and aluminum; worked with Gronning Design + Manufacturing LLC in D.C. to fabricate the installation, called “Society’s Cage.”

Created by a team of designers at SmithGroup, the installation features weathered steel bars hanging from a steel plate ceiling on top of a raised 15-foot square platform. Information about the history of racism is written around the base.

The installation is designed so that visitors can step inside and feel the weight of history while still being in the open air. Four compositions by D.C. area musicians Raney Antoine Jr. and Lovell “U-P” Cooper play on a loop inside. Each are eight minutes and 46 seconds, the length of time it took George Floyd to die in Minnesota.

“The pavilion is a real and raw reflection of the conversations about racism happening now,” Dayton Schroeter, lead designer and a principal at SmithGroup. “It’s a physical manifestation of the institutional structures that have undermined the progress of Black Americans over the history of this country.”