6 HEIGHT ADJUSTABLE ERGONOMIC DESIGN The adjustable laptop holder raises your notebook from 2.15 inches to 6 inches for perfect eye level. The 6 heights help reduce back pain, wrist pain, neck stiffness, and eyestrain. It is very ergonomic and comfortable for reading and writing. FOLDABLE AND EASY INSTALLATION This portable notebook stand weighs only 0.6 pounds. It is very lightweight and can be quickly retracted into a thin size like a paper fan. With a bag, it is easy to carry anywhere. This compact stand only takes 1 second to open, close, and install. Save time and space. UNIVERSAL COMPATIBILITY The laptop stand is compatible with all notebooks from 11 to 17 inches, such as: Compatible with MacBook Air/Pro, book, XPS, HP, ASUS, Lenovo ThinkPad, Acer, Chromebook, Samsung, tablets, iPads, and more. It's the ideal companion for your home, office, airport, coffee shop, and outdoors.DURABLE & COMPREHENSIVE PROTECTION: The laptop stand is made of high-quality 4mm aluminum alloy, making it very sturdy and capable of supporting a weight of up to 11 lbs (5 kg). The four non-slip silicone pads on the top and bottom of the stand and two rubber mats on the hook keep your laptop stable and protect it from slipping and scratches.