Manual Screen Screen Size 100 inci Viewing Area 2213 x 1245 Brand World Matte White Main Features - Using The International popular octagonal shape of galvanized steel case , solid and durable , simple shape , elegant style , and suitable modern aeshetic. - Using patented technology automation self lock system , using fluid , it can stay at any position, and lightly pull , use the spring will automatically return to coiling block. - Using special unique patterns, change the traditional fabric of direct reflection, using diffuse reflection to whole projection screen achieve the same effects.