Sturdy metal frame and durable chipboard for shelving, reinforced by crossbar on the back. This ladder bookshelf is quite stable and has a long service life. 4-Tier open shelves, rustic ladder shelf provides ample space while making full use of the space. Suitable for storing any items you want to collect and display. Stable for safe, 4 protective covers on the bottom to guarantee the wooden ladder shelf stands stably while protecting your floor from scratches. Modern industrial style, stylish appearance, matches well with your other furniture. Package list: 1 storage rack, 1 x accessories kit. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding. Monitors are not calibrated the same, item colour displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Please kindly note that this product needs to be assembled by yourself.