Upgraded Double Elevated Design The laptop stand is designed for 6+9 adjustable levels to satisfied the comfortable angle and height to Correct sitting posture, Relieve eyestrain and neck fatigue.A Perfect tablet stand laptop stand can be adjusted 2.75" to 12.6" height, 0°to 80°Angle,1.8" to 7.48" width. Fit all laptops iPads 11"to 17.3"The laptop riser fits all laptops up to 17.3 inches, such as Apple MacBook 12 / 13, MacBook Air 13, MacBook Pro 13 / 15 / 2018 / 2017 / 2016,Switch, Samsung Tab,LG,Moto, Google Nexus, Kindle, Lenovo ThinkPad, Dell Inspiron XPS, HP, ASUS, Chromebook, and other notebooks PC computers ( 11 inch, 12 inch, 13 inch, 13.3 inch, 14 inch, 15 inches, 15.4 inch, 15.6 inch, 17.3inch etc). Sturdy and PortableThe laptop riser is designed with stable tripod structure and made of preminum Aluminum Alloy, and can be fully folded into a portable size 11.4*1.8*0.98 inches ,convient to take it to travel,home, office,c