This is a frameless projection screen with stickers, which is easy to install on the wall or take down from it. Grey screen effectively improves the projection contrast. The coating layer with bead particles increases the brightness. No need to close doors and windows during the day to experience great projection. It diffuses projected light uniformly, and you will experience a perfect visual enjoyment with optimal image and color reproduction. Suitable for home theater movies, classroom training, conference room presentations, public display, etc...