Ram Mount Flat Surface Mount for the Delorme Earthmate PN-20/30/-40/60/60WSE Consists of a double socket arm, 2.5" diameter round base with the universal AMPs hole pattern You can move the flat surface Delorme Earth mate mount to your optimum viewing position Designed into the mount is a 1" diameter patented rubber ball and socket system This mount is designed to hold the following devices: Delorme Earth mate PN-20/30/40/60/60WSE High Strength Composite and Powder Coated Marine Grade Aluminum Patented universal rubber ball and socket system allows you to mount virtually anything anywhere. Made of marine grade aluminum with a powder coated finish and rubber balls Superior shock and vibration isolation for electronics Unique design provides easy installation, mobility, strength, adjustability and versatility Construction provides a light weight and corrosion resistant product