All sculptures are made of steel plates carefully selected by the artist for their visual aspect, textures and physical properties. The material is at the center of every composition. Occasional marks in the steel also reflect the industrial path chosen by the artist.

All James Kennedy's steel artwork is meant for indoors. Although a finish has been applied on the steel for protection against oxidation, it is important to keep in a dry environment. It is also important to avoid touching the work with bare hands or using water or any abrasive products on the work as this can take away the finish. Some oxidation might appear over time.