The RAM-101-B-SAE1 consists of a short double socket arm, 2.5" diameter round base with theuniversal AMPS hole pattern and 2" x 2.5" rectangular base that has pre-drilled holes at each cornerof the base plate. Designed into the mount is a 1.5" diameter patented rubber ball and socket systemwith adjustment points at both socket ends of the arm. Rubber ball and socket technology allows foralmost infinite adjustment and perfect viewing angles.HARDWARE INCLUDED(1) 2" x 2.5" Aluminum Backing Plate (1) 8" Zip Tie (4) #10-24 x 1.5" Machine Screws (4) #10-24 Nylock Nuts (1) #8 x 1/2" Sheet Metal Screw (1) #8 Washer (1) 5/16" Wire ClipPRODUCT DIMENSIONSOverall Height: 5.225"SOCKET-TO-SOCKET LENGTH2.5"HOLE PATTERNRound Plate: 4-Hole AMPS: 1.181" x 1.496" 3-Hole 120-Degree: 1.812" Diameter Rectangular Plate: 1.5" x 2"PLATE SIZERound Plate: 2.5" Diameter Rectangular Plate: 2" x 2.5"BALL/SOCKET SIZEC Size (1.5")WEIGHT CAPACITY4 lbsMATERIALSMarine-grade aluminumPACKAGING TYPEBoxWEIGHT1.25 lbs.