UPPERCASE KRADL Air Small Profile Aluminum Vertical Stand for MacBook Air Save valuable desktop space by standing your MacBook Air up vertically A true space saver: small profile even when your MacBook Air is not docked Machined from a single piece of aerospace grade aluminum Bottom Rubber silicone pad to protect your desk and restrict movement Designed in California. Compatible with the MacBook Air 11" and 13" only. Not compatible for MacBook Air with protective case installed.