 It is made from a combination of materials, including petrol cans (inflated to hold more), spices, and audio and visual elements (e.g.a recitation of Yoruba, Mahi and Wémé names from beneath the masks, the terrible sounds of a slave ship, and a video of black market petrol-runners in modern Bénin).The artwork’s arrangement recalls the famous 18th-century print of the slave ship, the Brookes.