Check the listing for details. RAM-VP-SW1-4-2461 RAM 4" Upper Pole with Double Swing Arms & 75.... Color: Black, Condition: New. Listed at 142.44 USD. RAM 4" Upper Pole with Double Swing Arms & 75... RAM-VP-SW1-4-2461 Genuine RAM Products! The RAM-VP-SW1-4-2461 consists of a 4 INCHES upper male Tele-Pole, double swing arm and 3.625 INCHES square base that contains the VESA hole pattern. The Tele-Pole can be easily adjusted by turning the knob at the top of the post. Once the knob has been tightened, the Tele-Pole becomes a rigid support for connecting devices or cradles. The Tele-Pole will connect to any RAM vehicle base with a welded female Tele-Pole. The double swing arm with rotating plate, allows you to twist and tilt the viewing angle of your connected electronic device, when mounted on your RAM Vehicle Mount. The rotating swivel arm gives you even more viewing positions for your mounted electronic device while holding everything firmly in place. The length of the double swing arm is 12 INCHES . The 3.625 INCHES square base includes a 75mm X 75mm VESA hole pattern with 1.5 INCHES rubber ball positioned 0.88 INCHES from the center of one edge.hardware included Assembly Hardwarehole pattern 75 x 75mm VESAplate size 3.625 INCHES x 3.625 INCHES ball size C Size (1.5 INCHES )materials Powder coated steelMarine-grade aluminumpackaging type BoxWeight 5.59 lb hardware included Assembly Hardware hole pattern 75 x 75mm VESA plate size 3.625 INCHES x 3.625 INCHES ball size C Size (1.5 INCHES ) materials Powder coated steelMarine-grade aluminum packaging type Box Weight 5.59 lb