Convenient installation: The speaker mounts can be installed on the ceiling, which can be tilted up and down by 90°, and the level can be adjusted 360°, so that your speakers can get a perfect angle of sound Safe and reliable: Made of solid steel, it can withstand additional loads of up to 100 pounds. Universal and compatible: This ceiling speaker mount is almost compatible with most 8" 10" 12" 15" speakers on the market TIPS & NOTES: Please double check that the size and appearance match your speaker before purchasing. Package includes: speaker Mount, instructions, and all screws for installation. Note: The complimentary screws are only suitable for use on solid walls and brick walls. They cannot be used on plaster walls and wood panels. Service and Guarantee:Howonder provides a 12-month quality guarantee, if the product has quality problems, please contact us.