For 8foot by 21foot projector screen, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 8foot by 21foot projector screen has been well received by many customers and enjoyed a good reputation in many countries. Shenzhen Smax Screen Co. Limited8foot by 21foot projector screen have characteristic design & practical performance & competitive price, for more information on the 8foot by 21foot projector screen, please feel free to contact us.