Specifications: 1. Material?ABS connectors, PP Plastic Panel? Rust-proof Metal Frame and Black iron wire meshes 2. Color: White Panels and Black iron wire meshes 3. Size for Each Cube: (13.8 x 13.8 x 13.8)" / (35 x 35 x 35)cm (L x W x H) 4. Product Size: (42.5 x 14.1 x 55.9)"/ (108 x 36 x 142)cm (L x W x H) 5. Weight: 18lb / 8.61kg 6. The Max. Load Capacity of Each Grid: 22lb / 10kg Package Includes: 1 x Bookshelf Notes: 1. When receiving the goods, please confirm the product according to the listing of instructions. Once you find Less pieces, please provide relevant pictures to contact us. We will deal it in the time. 2. Please install goods with the instruction manual. 3. It is recommended that the installation should not be too tight to adjust easily. After the structure is installed, firm the interface for more stability.