Cineperm permanently tensioned projection screen is a snap-on projection screen with aluminum frame. Provides contemporary, theatre-like appearance wherever a fixed screen is required. Flexible viewing surface is stretched perfectly flat and sna…ps onto a 1″ (25mm) tubular aluminum frame for superior image quality.Product Features:Features 119″ that is suitable for large group presentationsM1300 matte white diffusing surface for high-resolution data projectionA 16:9 projector on a 16:9 screen is obviously the best mix for streamlining HDTV