1. BookshelfThis desk side shelf on wheels is a great addition to your desk. The 5 tier shelf has a large capacity and can hold books on both sides, which is a great solution to help you organize and store office supplies, books, and other miscellaneous items. 2. Easy to MoveThis multi tier bookshelf is equipped with pulleys that allow it to glide and move easily. You can move the bookshelf to any position, making it easy for you to transfer items effortlessly, and meeting your need for smoother access to your items. 3. Sturdy and This trolley is made of high quality ABS PP with sturdy structure and superb load bearing capacity. It is durable and provides sturdy support for all your storage needs without sacrificing stability. 4. EASY INSTALLATIONThis cart is easy to install with installation instructions. It can be placed not only by the desk, but also in a variety of settings such as the kitchen, living room, bathroom or study, etc. Compact in size and large in capacity, its compact design can be adapted to different spaces to maximize storage efficiency.