The RAP-111BU consists of a composite 1.5" diameter rubber ball connected to a flat 6.25" x 2" rectangle base. The base 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.
C Size 1.5" Rubber Ball
High Strength Composite
The "U" in the part number reflects product packaged in poly bag. The included 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.