RAM Drill-Down Ball Mount with Wrench for Humminbird Helix 8-15, Solix & Apex

Features:   3.68" round base with predrilled holes, two holes at 180 degrees and three holes at 120 degrees. 2.25" rubber ball attached to base Short double socket arm - Overall arm length: 5.0625" A single spring inside the arm opens the end sockets, allowing you to pivot the ball and socket connection 2" x 5"  rectangular plate with 2.25" ball and predrilled four hole pattern Plate thickness: 1/4" - center to center hole pattern is 1.5" x 4.5" (hole diameter: 1/4") RAM adjustable socket system: easily adjust to your perfect viewing angle Overall length fully extended: 7.875" Weight capacity:  Up to 6 lbs. Includes Hi-Torq wrench - helps tighten the arm for a secure hold Constructed of powder coated marine grade aluminum Genuine RAM Mount: Part #  RAM-D-202-25-C-202-KNOB9HU Manufacturer's lifetime warranty Made in the USA   Compatible Devices:     Humminbird Apex 13 Apex 16 Helix 8 Helix 9 Helix 10 Helix 12 Helix 15 Solix 1