Choosing a new plastic material for a container includes several different steps. In this case, the Finnish company Hackman needed a new type of packaging material for their cutlery- and kitchentool series »Hackman tools«. The project was carried out in cooperation with the design agency Ytterborn & Fuentes, which has Hackman as a client. Several different demands were put on the material in order to fulfill as many of the clients wishes as possible. The most urgent problem with the existing container was the difficultys for the customer to clearly see the contents in the container. Because of this problem the customer tried to open the container in the shop. To avoid this from happening, Hackman wanted a more transparent plastic material that still fulfilled all other necessary properties such as strength, viscosity, printability, sealability and exhaustion strength. The final result and recommendation of a polypropylen-plastic (Evacast) was based on detailed studies of packaging plastics and their properties as well as discussions with plasticconverters and suppliers. The recommended plastic is avaliable in several different models that fulfill all demands on material properties, environmental aspects, cost aspects and transparency. Apart from the material problem the project also included drafting some sketches and ideas on new construction solutions for the container. The construction of the exsisting container was also a problem because of its complexity. As a result of the change of material it has been possible to simplify the construction.