Amazon.com: Universal 1" Ball Mount Adapter for Gopro Hero 13 12 11 10 HSU Aluminum Twin Dual Mount for GoPro, Double Mount Adapter for Hero RAM Ball Adapter for GoPro Bases with Universal Action Camera Adapte GoPro Hero & Garmin Virb X & Virb XE Adapter Emounting.nl Amazon.com : Aluminum Dual Twin Mount Adapter for GoPro Hero 4 5 6 7 8 Gopro Mount Ram at Martha Holt blog. RAM GoPro Hero Adapter with Double Socket Arm and Flat Surface Mount . RAM B 138 GOP1 The Mount consists of a 63. 5mm (2. 5") diameter base with 1" ball and the universal AMPs hole pattern. The GoPro Hero Adapter attaches directly to the underside of the camera, replacing the factory mounting bracket. Adjustment points at both ends of the 3 inch double socket arm allowing for optimum viewing position The rubber ball and socket system absorbs vibration. The Mount can be used as a permanent drill down fixture or temporary, removable fixture with the addition of the RAM 2. 5" Triple Magnetic Diameter Base accessory, RAP 339U (sku 3864). ( NOT SUPPLIED WITH THIS MOUNT BUNDLE). Compatible with; HD HERO, HD HERO2, HD HERO3 & HD HERO 960. Manufactured from High Strength Composite and Power Coated Marine Grade Aluminum. Lifetime Warranty. Made in U. S. A. RAM B 202 RAM B 201 RAP B 202 GOP1