The sculpture created by Robert Irwin is placed in the highest spot of the visiting area at Instituto Inhotim. The artist was based on an architectural language present in constructions made of precast concrete molds. The tilted walls compose an octagonal structure sheltering yellow, triangular, and textured glasses on top of each wall.

Shifting during the day, the incidence of sunlight passes through this sculpture open to the sky and partially unfolded, promoting a play of shadow and light on the ground and the walls. This way, it makes evident not only the perception of its formal structure but also the natural phenomena it is subject to.