The bookshelf is made of pure natural pine wood, no paint, hand sanded with smooth edges. Can be used directly without paint. You can also paint it yourself according to personal preference. size: The total height of the bookshelf: 50.4 inch (128cm). A total of 4 layers, each layer height: 11.6 inch (29.5cm). Diameter: 17.3 inch (44cm). Super large capacity: It can hold about 100 medium-sized books. Tall/deep enough to fit trade paperback graphic novels. Pretty stable: Once assembled, it is very stable, and it has been tested that children under the age of 14 cannot push it down. During the entire rotation process of the bookshelf, the bookshelf will not have any shaking. Space saving: Takes up very little space. Can be placed in any corner of the room. But it can make every room look like a small library. Free assembly mode: can be assembled into a 1-layer, 2-layer, 3-layer or 4-layer bookshelf at will. Made of pine wood, no paint, no smell, hand polished, no burrs.