Set of four swivel ‘Delta’ dining chairs designed by Rudi Verelst for Novalux, Belgium, 1971. The design balances airy lines with geometric precision, featuring a chromed wire frame, dark wooden armrests and a swivel base. The chairs were reupholstered by the previous owner in a distinctive 1990s velvet fabric with a graphic pattern, creating a striking contrast against the clean metal structure. In good vintage condition with minor signs of age and use.