Material: Alloy + Silicone Process: sandblasting oxidation Size: 180*220*45mm (folded size), 260*220mm (unfolded size) Applicable devices: 15.7 inch and below laptops and tablets [Ergonomic design] Stand laptop has multiple height and angle adjustments. It reduces eye strain and stress on your back by elevating your laptop to an optimal ergonomic position, so you can see the screen clearly and comfortably, which is best for maintaining a healthy posture. [ Universal Compatibility] Adjustable Length: 180mm (minimum) - 260mm (maximum). This desktop laptop stand can accommodate up to 15.7 inch laptop/tablet/pad/laptop/computer etc. The portable laptop stand is made of aluminum alloy and can hold devices weighing up to 15kg. [Better Cooling] Portable laptop riser with circular cutouts at appropriate places that will allow your device to have plenty of airflow to help keep it cool, and protects the laptop from hardware and CPU overheating. [Foldable] To fold the laptop stand, simply tilt the laptop tray to the back, then push it to the base, it slips easily into a laptop bag or backpack. Suitable for office, dorm and library use. It helps shape a more comfortable working experience. [Non-slip and durable] High-quality materials make the ventilated laptop stand more sturdy and durable. Non-slip feet maintain stability and protect the surface it is placed on. The edge of the holder is so smooth that it protects you from scratches. Avoid unnecessary slippage when watching movies, video chatting or reading. Delivery quantity: One piece Note: The data is manual measurement, please allow 1-33cm error, due to differences between light and screen, there will be a certain difference in color, the specific received in kind shall prevail.