You won’t even need a level for that because shelves balance themselves. Once metal support on the shelves backs is fixed on the wall you can move shelves to achieve the desired look. DreiX’s designed by German designer Christian Kim. DreiX is an innovative shelf system that is inspired by the process of movement. It consists of several cube shelves that could be positioned in a horizontal row or set on the diagonal. The installation of such system is easier than the installation of the usual one.