HILADUO Roller Shade 4%, Solar Screen, Black.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:Black (Dark Color) + 4% Openness: Maximum visibility and glare control. Black is the top performer for visual clarity. It absorbs scattered light, making the fabric almost disappear to the eye. Paired with the versatile 4% openness, it provides a crisp, unobstructed view of your landscape while effectively blocking UV rays and heat.