Charge your phone or mobile device wirelessly and keep your work surface clean from clutter caused by cables. Easy to install into a 2 5/16” diameter cutout by dropping in from the top. Ridges on the side of the grommet skirt bite into the core of the desk for a secure hold. Keeps a low profile for a sleek look on any desktop. Place phone on center of the grommet over the battery icon. The phone will signify a successful pairing and charging will commence. Easy! Works with all wireless charging compatible devices.