Definitions for "Extension Brackets"
Keywords:  bracket, cranks, sill, blind, mount
Optional piece: used to bring a blind out/away from the mounting surface; helps to make the blinds line up where you want them, especially when lining up with a window sill. Also know as an "L" Bracket.
Used for outside mounts only, extension brackets snap onto the sides (installation brackets) of the blind/shade to increase the space from the blind to the window.
Metal "L" brackets that are used in installing blinds that need to be extended out over the sill