Aluminum alloy frame, polished or painted black, graphite or white. Seat and back upholstered in polyurethane. Removable cover in fabric or leather or non-removable in cowhide. Upon request two loose covers to be put on without fixing can be supplied: in 100% white cotton, available either short covering seat and backrest or long covering legs too. Upon request a trolley for carrying the stacked chairs (max 15 chairs) is available.