Folding Portable Laptop Stand Viewing Angle/Height Adjustable Quality Aluminum Alloy Bracket Support 10-17inch Notebook Features MATERIALConstructed from Aluminum Alloy and silicone parts, safely and securely to brace your devices, non-slip mat make more stable in use CONVENIENTEach piece measures 23x13cm, weighing about 100g (0.22lbs). With its fully collapsible and ultralight weight design, convenient take it to the coffee shop, library, on the business trips or anywhere you go FUNCTIONALAccording to your habit to adjust Stand's width and height, ease on down and up to change the angle to meet your demand, preventing neck and cervical spine from degradation and shortsighted; It's also helps to keep laptops running cooler and prevent from overheating COMPATIBILITYThis Laptop Stand fits any laptop between 10"-17", suit for Apple MacBook, Pro / Air, Chromebook, Samsung, Acer, HP, Dell etc SWEET TIPIf there's not smooth when you open, please adjust one of the supports up and down, so that the two supports to reach equilibrium