The OmniMount 20.0 C Stainless Steel Speaker Ceiling Mount is designed to mount a bookshelf speaker weighing less than 20 lbs to a ceiling. The polymer ball fits in the wall-mounted bracket and a small threaded shaft connects the ball to the speaker. The ball can then be rotated within the bracket so the connected speaker can be moved to your desired position to maximize audio distribution. Featuring stainless steel hardware, the mount is durable and well suited for all-weather use. The mount comes with a complete hardware kit to smooth the installation process.