【Four-Hole Projector Stand】Perfectisan’s projector stand is suitable for most projectors on the market and is suitable for both wall and ceiling use. (Only applicable to four-hole projector stand) The distance between holes is 5.9 inch-14.1 inch. | 【Exclusive patent】Perfectisan independently developed and designed a patented quick locking device, a unique "anti-slip" adjustment system that will not shift after letting go, accurately adjust the projection position, easily fix the angle you want and lock it in any position! The angle of the projection bracket is adjustable, 90° tilt, 360° rotation, and 25° pitch at any angle, making it easy to use. | 【Heavy Duty Protection】This projection stand is made of high-quality aluminum alloy material. It has a shock-proof and thickened base to ensure that the projector stand is strong and reliable. It supports a maximum load weight of 55 lbs / 25 KG, ensuring that your expensive equipment is safe and reliable. Does not drop. | 【Easy to Install】The projector stand has a maximum length of 13.8 inch / 35.3 cm and a retractable height of 9.72-13.8 inch. It provides flexible installation, you can choose ceiling or wall installation according to your preferences and space requirements, just drill 4 holes on the load-bearing wall or ceiling to complete the installation. Perfect for use in classrooms, conference rooms, hotels, home theaters, or anywhere a projector needs to be installed! | 【Package Included & Quality Service】Perfectisan will provide all accessories needed for installation as well as the projector stand itself. The package contains expansion tube x 2; different types of screws x 28; spacers x 12; installation instructions x 1. If you are interested in this projector stand, if you have any questions during the purchase process, please contact us as soon as possible , we will try our best to solve the problem for you in time.