Product Description Compatible model The vertical desk stand is compatible with iPad Pro, MacBook Air, MacBook Pro, Microsoft Surface, Chromebook, Notebooks, Dell, Samsung, Lenovo, Acer, Sony, Asus, XPS and HP ENVY Series, but not compatible with 17 inch laptop or other size larger computer. Adjustable dock size Depending on the thickness of your computer portable to adjust the size of the desktop docking station from 0.55 & agrave; 2.87 inches. you can adjust the screw to tighten & agrave; the right size. Why choose Houkiper Supporter Laptop Silicone pad 3 silicone pads & agrave; the interior prevents your laptop from getting scratched; and keep it in a stable position Aluminum Alloy The vertical laptop stand is made of a superior aluminum alloy similar to the material of the MacBook. Vertical storage maintains your MacBook & agrave; away from accidental water splashes. Space-saving Hold your laptop computer & agrave; vertical, organize your desk to save more space quickly. Book holder Adjust the width of the stand, the vertical laptop stand can become a book stand in seconds. Specification: Material: aluminum alloy, silicone Color: silver Adjustable arrangement: 1.4 -7.3cm / 0.55- 2.87 inch Size: 150 * 96 * 48mm / 5.9 * 3.77 * 1.89 & rdquo; Net weight: 450g / 15.87oz