Tojo-bieg bookshelf. The German design team Eigenwert has created a smaller version of the popular Stell shelving system: the sturdy shelves made of white-coated MDF remain, but are now combined with delicate metal brackets as spacers in the shelf. The structural appeal of these metal angles, which are bent vertically at 90°, gives the shelf its distinctive name. The eponymous German manufacturer offers the shelf in two angle heights, small with 23 cm and large with 31 cm shelf height. The shelving system is freestanding and can be extended in height with additional extension sets, allowing for flexible combinations in shelf height – making it a perfect room divider! Tojo-bieg bookshelf extension element. Each extension includes one shelf and three metal angles, allowing the shelving system to be expanded in height on an optionally available base element.