This Stowaway Fish Finder Mount has a fully adjustable height from the gimbal mounting location. The mount is built with a spring loaded locking pin designed to ensure a secure lock every time. The lower tube is made of 1/8" aluminum, seamless tubing to provide stability to your entire setup. The fold down will enhance visibility as you travel to your favorite spot. Whether on the lake in rough water or on the highway, anglers have a stowaway option for their graph. This also allows for easy tarping of your boat without modifications to your cover. Stowaway suggests mounting in a structurally sound place on your deck that utilizes the support bracket on the tube. When folded down, the weight of the graph creates extra pressure on the mounting location and the tube support will relieve the pressure and reduce wear. Note: All models drilled to fit all Garmin units, Hummingbird except Helix 7, and all Lowrance units. Features6061 Aluminum and 300 series stainless steel hardwareHar...