This multifunctional desktop shelves can create a more efficient storage space for your desk for storing or displaying books, office supplies & decorations. It is composed of two separate parts, which can be adapted to any arrangement to fit various spaces. It can be completely overlapped to form a classic shelf, or decomposed into about twice the width. This bookshelf is made from MDF material, truly sturdy, stable, durable & eco-friendly. Simple assembly required.