HILADUO Roller Shade 4%, Solar Screen, Gray.About the Dorus Series:Echoing the strength of classical architecture, the Dorus collection embodies robust simplicity. This fabric is woven with thick, single-color threads, creating a sturdy, substantial texture that hangs beautifully. The unique 4% openness offers an optimized balance, providing slightly more clarity than a 3% weave while maintaining better privacy than a 5% screen.Visibility & Light Control:Gray (Medium Color) + 4% Openness: The versatile standard. Gray is excellent for color neutrality—it doesn't change the color of the light entering your room. Combined with the 4% weave, it offers effective glare control for screens and monitors while maintaining a pleasant, moderately clear view of the outside world.