Cage-B is a bookcase with a utilitarian design. The image above shows a version with load-bearing metal frame painted dove-grey and shelves in eucalyptus. Struts are available in the following materials: steel, brass, hand-finished bronzed black steel, hand-finished bronzed brass and in metal painted either red or dove-grey. Shelves can be ordered in the following materials: eucalyptus plywood, heat-treated black eucalyptus, heat-treated acacia, heat-treated chestnut, heat-treated oak and marsh-land oak with a water-based wax coating. Cage-B can be ordered in various sizes.