The Schelklingen phallus was discovered in 2004 in the Hohle Fels cave in Schelklingen, in the  Alb-Donau district of Baden-Württemberg . Approximately 28,000 years old, the phallus comes from a Gravettian stratum, during the Ice Age, and is made of anthracite gray siltstone. It is 19.2 centimeters long, 3.6 cm wide, 2.8 cm thick, and weighs 287 grams.

The stone artifact has been reconstructed from fourteen fragments, showing groups of marks and scratches, demonstrating that it was also used as a mace. It comes from a stratum that can be precisely distinguished, in which more than 10,000 flint artifacts, numerous organic remains, and many burned remains of bones have been found. This phallus-shaped percussion instrument provides information about the representation of male sexuality in the Gravettian, a period known mainly for its Venuses and representations of animals and chimeras.