A product sometimes can be seen as a mixture of multiple materials. Different materials come together might create very dramatic chemical reaction on the project. For most of the time the material mainly severs for the functionality, but it may also create a strong visual effect.
Sleek VS Rough
Modern VS Ancient
Artificial VS Natural
V4 is a lovely interpretation of a vase made from iron, concrete and walnut, by Seung Yong Song. It creates a strong contrast between the nature and artificial material.