Better Homes and Gardens® Special Interest Publications® Home Products Guide™ Spring/Summer
From page 94:
Wood fences add privacy, but they block breezes. Now the Flex-fence louver hardware system turns fences or deck roofs into shutters
Open the slats when you want a breeze; close them to keep out rain or prying eyes.
The standard kit (about $25) contains two 4-foot rails, 22 brackets, an operating bar and all hardware (you supply lumber). Custom lengths are also available.
