On every boat test I do, I wish there was a stowage space lined with foam to protect my cell phone and/or other electronics. Deep Blue came through with the BL-2. The two compartments (one for binoculars) have a closed-cell foam pad in the bottom. Four suction cups are included for horizontal mounting applications or screw mount vertically or horizontally. The unit measures 10 by 5 by 6 inches.