Ram Mounts Ram Double Ball Mount Marine Electronic Accessory - The RAM-101-LO11 consists of a 2.5in diameter round base that contains the universal AMPS hole pattern, 6 inch double socket arm and adapter base that inserts directly to the back of Lowrance Elite-5, Elite-5 Ti, Elite-7 Ti/Ti^2, HOOK-3, HOOK-4, HOOK-5 and MARK-5 Fishfinders. The adapter serves as a quick release mechanism, allowing you to remove or transfer your Fishfinder in seconds. Designed into the mount is a 1.5in diameter patented rubber ball and socket system with adjustment points at both socket ends of the arm; this with RAM's rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles. Product Dimensions - Overall Height: 7.35" Socket Tt Socket Length - 4.66in Hole Pattern - 4-Hole AMPS: 1.181in x 1.496in 3-Hole 120-Degree: 1.812in Diameter Plate Size - 2.5in Diameter Ball Size - C Size (1.5in) Weight Capacity - Standard Use: 4 lbs Heavy-Duty Use: 3 lbs Materials - Marine-grade aluminum Packaging Type - Retail Box Weight - 1.22 lb