black-button-XIII, Diabas/Copper, 1.9m x 1.2m x 0.8m
Black button I, Diabas/Copper, 2.2 × 2.2 × 0.6 m
Black button XV, Diabas/Copper, 1.6 × 0.6 0.5 m
Black button 5, Diabas/Copper, 35 × 50 × 15 cm
Red button 3, Red-Granite/Copper, 35 × 50 × 15 cm
Black button 1, Diabas/Copper, 1.0 × 0.8 × 0.7 m
Red button, Red-Limestone/Copper, 2.8 × 1.8 × 0.7 m
Black button 08, Diabas/Copper, 20 × 18 × 10 cm
Black button 13/I, Diabas/Iron, 1.3 × 0.9 × 0.5 m
Black button B, Diabas/Iron, 1.6 × 1.2 × 0.5 m
Black button II, Diabas/Iron, 1.2 × 2.2 × 0.5 m