draper glass beaded rolleramic electric screen - av format 70 x 70
dr3902rolleramic heavy-duty motorized projection screen . ideal for auditoriums and lecture halls hospitals hotels churches and other large venues . all-wood case may be recessed in the ceiling or painted to match its surroundings . end-mounted direct-drive motor sits on rubber vibration insulators minimizing friction and noise . features with control options it can be operated from any remote location . ntsc format screens have black borders on all four sides . depending on surface available in sizes through 20 x 20 and 25 ntsc . optionally available in hdtv and widescreen format . custom sizes available . warranted for one year against defects in materials and workmanship . screen material glass beaded brighter on-axis viewing than matt white surfaces within a narrower viewing cone . some loss of clarity . not for use with ceiling or floor mounted projectors . flame and mildew resistant but can not be cleaned . now available seamless in all standard sizes through 10 high .