RAM Flat Surface Drill Down 1.5" Ball Mount for Humminbird Helix 5 Surface Go One base attaches directly to

One base attaches directly to the bottom of compatible Raymarine Dragonfly devices using the included hardware

One #28 worm-drive strap clamp

Multiple adjustment angles for optimal viewing alignment

Included Hardware: 1/4"-20 U-bolt for 0

base measures 2

RAM Flat Surface Drill Down 1.5" Ball Mount for Humminbird Helix 5 Surface Go One base attaches directly toAttaches to flat horizontal or vertical surfaces* Features: 2. 5" round base with re drilled universal AMPS hole pattern and 1. 5" rubber ball Standard length double socket arm Overall arm length: 5. 625" A single spring inside the arm opens the end sockets, allowing you to pivot the ball and socket connection 1. 5" x 3" plate with a four hole pattern and 1. 5" rubber ball Plate thickness: 1 4" center to center hole pattern is 1. 5 x 2. 5" (hole