&lt;b&gt;Sapphire Projection Screen 1704mm x 958mm not channel fix&lt;/b&gt;N/A- All screens ship as standard with black borders to increase the perceived qualities of the projected image.N/A- Heavy duty spring roller to ensure that the screen fabric is kept taut.N/A- Simplistic pull-out system locks at every desired viewing height.N/A- Supplied with a weighted bar to ensure the screen fabric is kept taut.N/A- Pull handle integrated into weighted bar.N/A- Supplied with extra black border on upper side of the screen in 16:9 format to ensure that the screen can be positioned at optimal viewing height.