The Manfrotto 553 Right Angle Bracket is designed to be used with a "leveling center column" in horizontal orientation (e.g. 555B, 556B Leveling Column). This simple L bracket makes it possible to mount any tripod head in a normal horizontal position parallel to the ground, even when using the column in horizontal position. Also features a bubble level to make leveling easier and faster.
553 Right Angle Bracket for Leveling Center Column