The lightweight, retractable design makes carrying the monitor to a campsite or a friend's house a breeze. Instant setup: The 40-inch screen opens and closes in an instant. Spend less time setting up and more time watching. Brightness optimization: The reflective white screen improves the brightness of movies and shows. The sturdy aluminum alloy frame ensures that the screen remains solid, even when viewed outdoors. Specifically designed by Nebula for use with Mars and Capsule series projectors. Screen size: 40 inches (102 cm) Aspect ratio: 16:9 Weight: 53 ounces (1,500 grams)