Nothingprojector Black Series Screen - Small sample Note: 1. This is just for small sample of fabric of screen.2. We can refund you for the small samples after you purchased our black series screens , please contact our customer service pop-up or email us at support@nothingprojector.com You can order it and put it on the wall and see if you are satisfied with the result. All samples would be sent from China with air post, please expect 7-21 days for delivery. No tracking. Product Parameters: Ratio: 16:9 / 4:3 / Customized Ambient Light Rejecting Ability : Excellent Gain : 0.6 Applicable Projectors : Ultra-short Throw Viewing Angle : 160 degrees Size : 100 and 120 inches Support 4k : Yes