Ram mounts double ball mount w/ metal knob

The RAM-101MU consists of a 6 inch double socket arm with metal knob and two 2.5" diameter round bases with the universal AMPS hole pattern. Designed into the mount is a 1.5" diameter patented rubber ball and socket system with adjustment points at both socket ends of the arm. Rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles. High quality materials insure your device is safe, secure, and within easy reach. RAM’s patented design also dampens shock and vibration helping to extend the life of your device. PRODUCT DIMENSIONS: Overall Height: 7.35", SOCKET TO SOCKET LENGTH: 4.66". HOLE PATTERN: 4-Hole AMPS: 1.181" x 1.496", 3-Hole 120-Degree: 1.812" Diameter. PLATE SIZE: 2.5" Diameter. BALL SIZE: C Size (1.5"). WEIGHT CAPACITY: Standard Use: 4 lbs, Heavy-Duty Use: 3 lbs.