Features Vibrant mid-century modern bookshelf: The bookshelf is brought to life by a special mysterious brown and crisscross partition design. The unique appearance allows you to enjoy both retro and modern styles. Reliable materials & sturdy structure: This durable bookcase is made of EPA-certified P2 particle board with a high gloss finish veneer. The single-weight capacity of each open cube shelf is up to 25 lbs. Considerate details & responsible service: If you have any concerns or needs in installation, please don't hesitate to contact us. We will serve you wholeheartedly. The assembly guide shows an option to drill into the wall, but this step is not necessary. You can choose whether or not to drill the hole, and it will not affect the overall assembly.