Solid Construction: made with strong steel and aluminum Designed for Ergonomic Comfort, allowing users to elevate the screen to eye level for the optimum viewing angle Provides variable height/angle adjustment for optimal viewing. Height adjusts from 5.9" - 7.9"; angle adjusts from 0° - 45° Open Ventilation Design helps promote air circulation, aiding laptop performance and battery life Under-Base Storage provides space to stow external peripherals for a tidy desktop environment Anti-Slip Silicon Pads protect laptop from being scratched and keep device in place while you work. Safety Ledge Stopper helps prevent devices from slipping As accessories add up on the desktop, space becomes a premium, especially when you add a laptop. With the Universal Tabletop Laptop Riser, you can raise your laptop to a comfortable viewing height, while also cutting down on desktop clutter. Constructed of durable steel and aluminum, this rock-solid riser is sturdy enough to support any size laptop up to 16