The design solutions in the design of serial products were large, production-related decisions, and they emphasize, in addition to functionality, also on the purpose of the price price-consciousness of the industrial designer. ”Household appliances are made in series of tens of thousands pieces, therefore the manufacturing method is important. When designing large series, the extra work and time for a small detail may increase the profitability significantly.” The picture shows a draft of the upper part of Helkama fridge.