The RAM-202-153-202U consists of a round 2.5" diameter round base (Universal AMPs Hole Pattern), double socket arm and 1.5" x 3" rectangular base. The rectangular base contains four holes with a center to center pattern of 1" x 2.5". For most applications, mount will support up to ten pounds.
Compatible Devices: Humminbird Helix 5
Center to Center Hole Pattern: 1" x 2.5"
Weight Capacity: 10 lbs.
Overall Height: 7.35"
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. Hardware for mounting to device not included with purchase.