The original version of 'Wedge of Chastity' was made in 1954, from plaster and dental plastic, so that the work looks like a tooth set in gum. Eight bronze casts were made in 1963; this cast was made especially for Duchamp. The piece has erotic connotations, as there are 'male' and 'female' parts which fit snugly together. Duchamp originally made the piece as a gift for his wife Teeny. He later explained: 'It was my wedding present to her... We usually take it with us, like a wedding ring.'