Specification Number of Tiers:3 Assembly Requirement: Yes Installation Type: Freestanding Shape: Cylindrical Material: Pine Wood Color: Wood Board Thickness: 12mm/0.47in Tier Height: 31cm/12.2in Support Leg Height: 10cm/3.93in Diameter: 46cm/18.11in Packing Size: 52*52*10cm/20.47*20.47*3.93in Gross Weight: 9.5kg/20.94lbs Each Layer Weight Capacity: 50kg/110lbs Package Included 1* Rotating Bookshelf Description The stacking of your child's thick books one on top of the other on the desk is a huge nuisance and even affects the child's motivation to read. A practical and innovative bookshelf will be an essential addition to your home. You can't go wrong with this rotating bookshelf.