Pyle Home PRJS43100 100-Inch Manual Pull Down Projector Screen Standard Format (4:3) Format: 4:3 - Other specialty: Mildew Resistant/Flame Retardant/Surface can be cleaned View area: 60''*80'' - Best used for: School /Business/Home Material: Matte White - Package size:11*13*223CM, Max viewing angle: 120 - Housing size:7*10*218CM Gain: 1.1 - G.W: 7.5KG Manual pull down, No Lock