An advertisement for a drainpipe was the source for this work. Like many of Oldenburg's sculptures, it renders a familiar object strange through its recreation in surprising materials and colours. The transformation of hard into soft objects is a recurrent theme in his sculpture. Adjusting the pulley can alter the appearance and dimensions of the work, producing a variety of shapes that suggest a crucified figure, an elephant's trunk and ears, or male genitalia.
Inspired by a true story, Invincible recounts the last 48 hours in the life of Marc-Antoine Bernier, a 14-year-old boy on a desperate quest for freedom.