Ram Mounts Universal Electronics Mount - Ram Mounts has designed the Universal Electronics Mount to easily mount many electronics securely. The Universal Mount utilizes a double ball and socket arm to allow anglers to adjust the position of their electronics on the fly than lock it down for a play free display. The 6.25"x2" rectangle base contains pre-drilled holes to match with many of todays electronics. Compatible Devices: Garmin Fishfinders/Chartplotter Humminbird Fishfinders/Chartplotters Lowrance Fishfinder/Chartplotters Raymarine Fishfinders/Chartplotters 6.25in x 2in rectangle base 2.5in diameter round base with universal AMPs hole pattern 1.5in Rubber Ball Size Powder Coated Marine Grade Aluminum Weight: 1.41 lb