RAM Handlebar Rail Mount for the Garmin GPSMAP 62, 62s & 62stThe RAM-B-149Z-GA41 consists of a double socket arm, zinc coated u-bolt base, diamond adapter base and custom high strength composite cradle for the Garmin GPSMAP 62 series. Designed into the mount is a 1" diameter patented rubber ball and socket system with adjustment points at the base and cradle. With a twist of the arm knob, you can move the motorcycle GPSMAP mount to your optimum viewing position. Included in this package is hardware that will accommodate rails from 0.50" to 1.25" in diameter. This mount is designed to hold the following devices: Garmin GPSMAP 62 Garmin GPSMAP 62s Garmin GPSMAP 62st Material:High Strength Composite and Powder Coated Marine Grade Aluminum Ball Size: 1" Rubber Ball "B" Size