pyramid, yellow 2005, 6561 steel wires, yellow lacquer, nylon strings, 4 x 4 x 2 m height
Bellevue-Saal, Wiesbaden, Germany (photo: Hans-Martin Asch)

cone, yellow 2006, 3997 steel wires, yellow lacquer, nylon strings, 3 x 3 x 1.5 m height
Nusser & Baumgart Contemporary, Munich, Germany (photo: Philipp Schönborn)