Cai Cuo-Qiang’s Head On glass install Published December 2, 2013 at 1620 × 1080 in Cai Cuo-Qiang’s Head On glass install ← Previous Next → The morning of the glass’ arrival, the ramp has the final important fittings added to it. The glass channel is fixed to the ramp below. The ramp, has already been securely fixed to the stone floor of the gallery.