11″ x 3″ Rectangle Universal Electronics Base with 2.25″ BallThe RAM-D-111BU, universal mounting plate, consists of a 2.25″ diameter rubber ball, connected at right angles to a flat 11″ x 3″ rectangular plate. The plate contains different combinations of pre-drilled holes which will match up to many electronic devices.Features:Material: Powder Coated Marine Grade AluminumBall Size: 2.25″ Rubber “D” Ball SizeWeight: 1.25 lbs.*Note: The “U” in the part number reflects product packaged in poly bag. This plate is a universal mounting bracket with a selection of mounting hole locations. In certain applications additional holes may need to be drilled for proper fit with your electronic device.