About this item 6-LEVEL ADJUSTMENTS: You can open, retract, and adjust this laptop stand with just a simple push! There are 6 levels of tilt angle adjustments from 9.5° to 16°, easily lift your laptop up from the desk. The height is also adjustable within 26 to 47mm, raise the line of sight and reduce backache and neck strain while using. GREAT HEAT DISSIPATION: The Kavalan adhesive laptop stand can be freely adhered to the bottoms of laptops, allows to avoid blocking the air vents and ensure great heat dissipation, prevent your laptop from overheating. LIGHTWEIGHT BUT STRONG: This compact laptop riser is featured with its lightweight design, well made of high-quality ABS material. Weighs only 50g but sturdy and stable enough to hold up to 17" laptops and all kinds of computer keyboards. WIDE COMPATIBILITY: With the minimalistic and portable design, this laptop stand can be used not only on your desktop but even on your lap, ideal for business and travel. Work well with almost all types of keyboards and laptops such as Macbook Pro/Air, iPad, Dell XPS, HP, ASUS, Lenovo ThinkPad, Acer, Chromebook, Microsoft Surface, etc. THOUGHTFUL GIFTED-READY PACKAGE: This adhesive laptop stand package comes with 2 laptop/keyboard risers, 2 extra removable adhesives, and an operating manual. Enclosed with a paper ruler in this package for easy measuring, so you can adhere the riser to the position you prefer. Keyboard not Included.