The 12" Drop Avalon Cornice kit is the most popular since it works great in most rooms and with all ceiling heights. The Cosmopolitan also comes in a 9" and 15" drop.
The kit includes 2 returns (end cap), 16" extension pieces to reach your chosen window width, 3" or 5" brackets, mounting hardware, and a "magic tuck tool".
3" brackets are used for recessed blinds allowing 3" of clearance off of the wall.
5" bracket allows for 5" of clearance off of the wall for outside mounted blinds and draperies.
Assemble the kit with a low temperature glue gun, which we sell in the glue guns/glue sticks section of this web site.