RAM 6, 25"" x 2"" Universal Electronics Base with 1, 5"" BallThe RAM-111BU consists of a 1, 5"" diameter rubber ball connected at right angles to a flat 6, 25 x 2"" rectangular plate, The plate contains different combinations of pre-drilled holes which will match up to many electronic devices and mounts, including Marine GPS, CB Radios, Ham Radios, Gimbal Brackets and more, Material: Powder Coated Marine Grade Aluminum Ball Size: 1, 5"" Rubber Ball Size Note:The ""U"" in the part number reflects product packaged in poly bag, , Product : RAM MOUNT 6, 25"" X 2"" UNIVERSAL ELECTRONICS BASE W/ 1, 5"" BALL, Manufacturer : RAM MOUNT, Manufacturer Part No : RAM-111BU, UPC : 793442011115 SKU: CW48150