PREMIUM MATERIALS - Metal-made screen casing better reduces the risk of deformation and damage whether in transportation or use; White plastic material with a three-layer composite structure makes the screen surface smooth and flat; The three-layer fiber structure does not expand and contract due to external temperature and humidity changes, which effectively prevents the screen from wrinkling and deforming | MANUAL SELF-LOCKING POSITION SYSTEM - The innovative design of the manual screen's self-locking torsion spring can accurately detect the subtle movements that occur as the screen opens and closes; This allows the screen to be locked at the specified position promptly, reducing pullback rebound and inaccurate positioning; The screen shaft uses high-purity lubricating oil, and the rotating structure is sealed dust-proof and highly durable | NEW VISUAL FEAST - The unique properties of white plastic materials ensure that each incident light is reflected uniformly; A panoramic viewing angle of up to 160° and a 1:1 high gain allow you and your family to enjoy a private and customized IMAX movie screen; The screen supports 3D, 1080P, 4K, and Full HD images; The surface of the curtain is embossed with a matte coating, which effectively improves picture brightness and resists the interference of ambient light | ATTENTION TO DETAILS - We grasp every detail needed for your screen; The edges of the screen are created by a special process that will not curl or warp over time; The white plastic material is mildew and moisture-proof, which can be scrubbed, and is easy to maintain; To facilitate your use, we have provided you with two methods of installation: wall and ceiling mounting make it easy to set up in any home NOTE: Screws and hooks are not included | WIDELY USED - This portable projection screen is suitable for a variety of scenarios; Whether it is a workplace office, teaching training, or used as entertainment equipment, such as watching movies, home theater, playing games, karaoke, etc., it's definitely your best choice