Furinno A6 Aluminum Ultralight Adjustable Vented Laptop Table features an air-vented cavity design which reduces overheating on your laptops, tablets or books. The special locking button can be set in full 360-degree angles to fit any body position, even laidback on your bed. Just hold the button on the joints, change the position, and release the button to lock it in place. The grooved table surface prevents slipping, and the collapsible frame allows for easy storage and carrying. Wrist guard provides added extra comfort. It weights five pounds and can support up to 30 pounds. The height is adjustable from 11.25 inches to a full height of 22 inches.