The cold shoe-1 is usually attached on the outside position of any Bracket 1 bracket using the 2 of the supplied screws into the small, threaded holes on the bracket system. Two Cold Shoe-1s may be attached "back to back" as well; one on the inside and one on the outside. When mounting the Cold Shoe-1 to the outside position of the Bracket 1 EX, use the longer of the four supplied screws. On inside position or on any other bracket, use the shorter of the supplied screws.