Description: MaterialLaptop stand is made of lightweight aluminum alloy matreial,this material is more practical than wood and provides tools to adjust the tightness. There is also an expandable aluminum plate on the back of the bookshelf to accommodate books of different sizes and stylesAdjustableThis bookshelf can be freely adjusted in angle and height to suit your eyes, promoting correct posture, thereby improving spinal healthSpace SavingThis bookshelf takes up very little space when folded, making it ideal for people with limited shelf or desktop space. When not in use, you can easily stow it in a drawer or bookshelf, space in your living or working areaUnique DesignMultifunctional laptop stand with heat dissipation design helps your laptop dissipate heat. We provide anti-skid pads to protect your laptop from accidental slips and scratches. The rubber head prevents paper damage and the rounded corners prevent accidental collisionsStrong Load-bearing CapacityThis book holder adopts the unique double-rod support structure design makes it a more solid stand that can bear books, , magazines, drawing paper, documents, sheet music, tabs, catalogs, laptops, etc Specification: Material:Carbon Steel Size Chart: Book Holder Base:21.8cmx16cm/8.58inchx6.30inch Book Holder Table:30cmx21.3cm/11.81inchx8.39inch Package Includes: 1Laptop Stand Note: Please allow slightly errors 1-2cm differences due to manual measurement.