Placement: Any upper or complete pole, low profile brackets, center pole or directly to any flat surface. Motion Attachment: Can be used with any Gamber-Johnson motion attachment with a 3/8" hole (sold separately). Rotate: The entire arm rotates 360 degrees and can lock at every 15 degrees Dimensions: 4.0" H x 4.0" W x 12.0" D Construction: Heavy gauge steel Finish: Black powdercoat Weight 5.2 lbs