Hachi-Boru Bowl from Serax. Perfect Imperfection Tableware By Roos Van De Velde. This porcelain range is a symbol of innovation in several ways. It is the first time a collection is produced in which imperfection, defectiveness and coincidence are given the chance to play their part during the production process. This dinnerware collection is like balancing on a thin wire: the perfect imperfection.