The Hobie Ram Torqeedo Throttle Mount consists of a double socket arm and two 1" ball diamond bases. This mount is designed to work with Torqeedo and Newport Vessels NK180 throttles. The diamond bases contain two holes 1.912" from center to center, positioned at both ends. The hole pattern found on the diamond plate will connect to many RAM cradles, as well as third party cradles including mounts with the industry standard AMPS hole pattern. For kayak or other track mounting options you will need the 1 inch track ball sold separately.