Adjustable Size: Adjustable thickness between 14mm and 66mm to fit your laptop's width; adjust the screws to tighten it to the correct size. Non-Slip and Stable: This excellent laptop stand features numerous silicone pads, especially in the U-grooves and under the base, to prevent your device from being scratched and keep it firmly on your desk. Premium Material: Sturdy aluminum alloy construction, with the same matte texture as the surface of a Macbook. Vertical storage protects your Macbook from accidental spills. Space-Saving: Placing your Macbook on this vertical stand not only frees up desk space but also makes it a stylish decoration. Keep your workspace or office clean and organized. Wide Compatibility: Compatible with Apple MacBook Pro/Air, iPad, Microsoft Surface, Dell, HP, Samsung, Huawei, Lenovo, Sony, Asus, mobile phones and tablets, or certain books.