The RAM-B-316-1-202U, universal RAM-POD I vehicle mount, consists of a RAM 1" diameter ball and socket system, connected to a 18" long flexible rod. The base consists of a 2.5" diameter round plate with universal AMPS hole patten end. This RAM POD I allows you to mount a light to medium weight item in a car safely and securely.Installation Instructions:At right angles to the base of the flexible 18" long leg is a foot with a mounting hole. Simply place the hole into the passenger seat mounting bolt and adjust the mount to the required height with the flexible leg. The rigid flexible arm will hold everything you need safely and securely.Material:Powder Coated Marine Grade AluminumBall Size:1" Rubber Ball "B" Size