SAFE AND SECURE: Robust design with heavy-duty steel to have extra load bearing up to 90 lbs Securely mount your speakers especially large speaker over 12'' anywhere within 15 minutes; FLEXIBLE INSTALL: Speaker ceiling mount/wall mount with horizontal adjustable in 360°, tilt up and down in 90° for your speaker to tilt or swivel for perfectly-angled sound; ELEGANT AND STRONG: Solid steel with sleek reinforced black finish, sturdy and reliable for large bookshelf speaker or center channel speakers; UNIVERSAL AND COMPATIBLE: This dual ceiling speaker is compatible with virtually most speakers on the market.Bolts with difference length are provided for your easy installation of speakers wall mount or ceiling mount; VERSATILE USE: Adaptable in a variety of settings. Great for multimedia conference, home theatre, KTV, studio, recreation center and school use, etc..