'The sensation of these pieces was that they come above your ankles, as if you were wading in bricks', Andre has commented. 'It was like stepping from water of one depth to water of another depth.' This was the last in his series of Equivalent sculptures, each consisting of a rectangular configuration of 120 firebricks. Although the shape of each arrangement is different, they all have the same height, mass and volume, and are therefore 'equivalent' to each other.