DFM 100" Diagonal 4:3 80" X 60" Ratio Motorized Electric Auto HD Projection Screen with Electric Remote Control 100" Diagonal, 4:3 Aspect Ratio. View Size:80" W * 60.0" H Matte White 1.1 gain screen material to ensure long-lasting use Convenient: To Regulate Drop/Rise with remote or iIntegrated switch. Black masked borders to provide a sharp and optimal clear picture,absorb light overshoot Practical:Ideal for home,business, public display or classroom education.