The led neon tubes are mounted on a stainless steel back frame which also holds up eight pieces of white - tinted glass in front . the system is tilted at ten degrees so that the reflection of the sky can be registered on the glass panels 整块墙壁是故意向后倾斜约十度，好让天空的影像能够反映在前面的玻璃之上，使之化成一幅可因应天气而变色的数码天空。
