Check the listing for details. RAM Mount Medium Double D Size 2.25" Ball Mounting Socket Arm RAM-D-201U-MI1. Condition: Used. Listed at 69.99 USD. RAM Mounts Double Socket Arm RAM-D-201U-MI1 Medium Arm Compatible with D Size 2.25" Ball Components Used Very Good Condition The RAM-D-201U-MI1, standard size double socket arm with jam nut, has a socket at both ends that accommodates 2.25" ball bases. A single spring inside the arm opens the end sockets, allowing you to pivot the ball and socket connection. This socket technology allows for almost infinite adjustment and perfect viewing angles.PRODUCT DIMENSIONSOverall Length: 8.44"SOCKET TO SOCKET LENGTH6.88"BALL SIZED Size (2.25")WEIGHT CAPACITYStandard Use: 6 lbsHeavy-Duty Use: 5 lbsMATERIALSMarine-grade aluminumPACKAGING TYPEPoly BagWEIGHT2.76 lb BrandRAM MOUNTSColorBlackCompatible DevicesGPS iPad Phone Radio & ScannerCompatible Phone ModelsRAM Mounts D-Size ComponentsMounting TypeBall & SocketAbout this itemRam Mount Double Socket Arm F/ 2.25" D Size BallsPackage Weight: 1.133 KilogramsCompatible Devices: Gps ipad phone radio & ScannerProduct Type:Car Audio Or Theater