This product will allow you to mount your Humminbird Helix 7 and consists of a round 2.5" (6.35cm) base with universal AMPS hole pattern, a double socket arm, and a 2" x 4" (5.08cm x 10.16cm) rectangular base.
Humminbird Helix 7
- Overall Length: 7.35" (18.67cm)
- Weight Capacity: Approx 4.5kg
- Material: Powder Coated Marine Grade Aluminium
- Ball Size: 1.5" Rubber Ball Size
Note: The "U" in the part number reflects product packaged in poly bag.