Check the listing for details. RAM Twist Lock Suction Cup & Long Socket Arm + Diamond Base Adapter RAM-B-166U-C. Condition: New, Made in United States. Listed at 53.49 USD. Features: ---3.25" suction cup twist lock base and diamond base adapter ---Designed to have a strong hold on glass and non-porous plastic surfaces ---Double long socket arm - overall length: 6": socket-to-socket length: 5.1875" ---Diamond base adapter with 1" ball - connects the mount to cradle --- RAM ball and socket system - easily adjusts to your perfect viewing angle ---Constructed of powder coated marine grade aluminum and high strength composite ---Great for GPS, smartphones, radios and more!* ---Genuine RAM Mount: Part # RAM-B-166U-C ---Manufacturer's lifetime warranty ---Made in the USA Will adhere to non-porous plastic including dash adhesive disks(sold separately). * A cradle is required to attach the device to the mount.