Universal Laptop Tray Mount Compatible with 11-17 inch laptops, including MacBooks and Chromebooks, this laptop tray mount supports up to 22 lbs, ensuring your laptop stays securely in place during use. Gas Spring Adjustable Laptop Stand Effortlessly adjust your laptops position with the gas spring laptop arm stand, offering 360° rotation, 145° tilt, and an extension range of up to 19.5 inches for optimal viewing. PLEASE ADJUST THE GAS SPRING TENSION IF THE HEIGHT ADJUSTMENT IS NOT WORKING.