You can use the product to hold the computer firmly without falling off because it is stable and non-slip. It is metal shell so it is durable. The width of the opening can be adjusted to fit most sizes of laptops. By using this product, you can have a stable working experience, and it can also help your computer cool down. Besides, it can help you organize your desk to save space. It is constructed of ABS and metal material. The revolutionary gravity shrinkage construction is used in the plastic vertical laptop stand. You only need to insert the notebook and the laptop holder will automatically shrink and clamp it tightly thanks to the spring at the bottom. Say goodbye to time-consuming manual adjustments, and install without the use of any equipment. The length of this product is 12cm, the width is 12.8cm and the height is 8.6cm. And the opening width is 0-38mm. It is compactible for phone, tablet, notebook, book, etc. Item Name: Laptop Stand Material: ABS+Metal Opening Width: 0-38mm Features: Gravity Design, Anti-slip Silicone, Heat Dissipation Size Details: L: 12cm/4.72", W: 12.8cm/5.04", H: 8.6cm/3.39"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Laptop Stand (Laptop Not Included)