material and light control: Made of PVC with gain 2.5, this screen boosts brightness and helps deliver clearer images. A black backing minimizes light bleed for a distraction viewing experience. Wide viewing angle and smooth surface: 178degree viewing angle and a matte white surface ensure consistent image quality from various seats without color shift. 4K 3D ready and versatile: Supports 4K, HD and 3D projections. Compatible with all front focus projectors. Offers 16:9 for home cinema and 4:3 for teaching, meetings, or web pages. Portable and easy to store: Compact, lightweight, and rollable with a retractable design for easy transport and space saving storage. Suitable for indoor, outdoor, and travel use. Practical use cases: Family movie nights at home, backyard or campsite outdoor screenings, classrooms and business presentations.