252032 Size: 6" The finest permanently tensioned projection screen for perfect picture quality. The fabric attaches to the frame without snaps or tools forming a pervectly smooth and flat viewing surface which ensures perfect picture quality. This screen has been designed so that it is simple to install and Clarion"s aluminum frame forms an attractive 2" border, for a clean, theatre-like appearance. M2500: Higher gain surface for projectors with lower light output, such as CRT units. Provides good black retention with accurate light colors and whites. M2500 tolerates a higher ambient light level in the audience area than many front projection screen surfaces. On axis gain of 2.1; viewing cone of up to 180 degrees.