100"D Tripod Portable Projector Projection 16:9 Screen 87x49" Foldable Stand 1.3 16:9 screen format and diagonal 100" offers 87" x 49" viewing area High contrast 1.3 gain let you enjoy clear and vivid picture Self-locked system provides variable height settings Lightweight steel case with reliable spring inside for simple installation&lt; Ideal for computer, video, slide and overhead projection in the home, office or classroom