This 4-tire bookcase is crafted from solid bamboo wood and high-grade E1 MDF board with UV painted, which can prevent some types of scratches, such as keys.It's reliable, stable and scratch - resistant.Each shelf can supports 22 lbs. Stylish, elegant, simple and versatile design use of various home decoration, features "A"shape construction and ladder-like shelves. 4 open tires and different size of each tires provides spacious space for your often use things.This ladder rack can be used as plant stand, bookcase, display shelf for your family photos. This shelf made of E1 MDF with UV painting surface, bamboo wood frame stand offers extra stable ability.Also perfect use for office. Simple structure and less part with clear instruction book makes the ladder shelf very easy to assemble by your self. Finish: UV painting Assemble required: 60 mins Package cartons: 1 pc  Assemble required: Yes. And there are all parts, hardware&screw bag and paper instructions in the package.