. Construction Optoma's matte white fabric is composed of 4 different layers including a sheet of weaved fibre-glass which helps stop static electricity and most importantly prevent wrinkles and waves. The screen fabric consists of a special material that helps prevent the loss of light making it compatible with virtually every projector.The fabrics are designed to be fire water and mold resistant and can be cleaned if required. The outside surface of the matte white screen has microdots that are made with PVC technology. This surface helps with creating the best possible reflection whilst new advances in screen technology help keep our matte white screen flat and retain its shape and effectiveness over longer periods of time. Selflock Pull down the screen and hold for 3 seconds then release. The screen will stay at the desired position. Features Format 16 9Maximum viewing size 92Self-locking mechanismCeiling mountable1 year warranty More info Size W 203 x H 114.5 cmWeight 11.3 kg What\'s in the box? Projector screenMounting bracketUser manual . .