Check the listing for details. RAM Short Arm Mount with 1/4"-20 Threaded Camera Base and Triple Magnetic Base. Condition: New, Made in United States. Listed at 54.49 USD. Features: ---Universal camera base with 1" diameter rubber ball, connected to a 1/4"-20 threaded post ---Fits any camera or other device with a 1/4"-20 female threaded hole ---Short size double socket arm: Overall Length: 2.42": Socket-To-Socket Length: 1.75" ---Magnetic base adapter - Round, flat 2.5" diameter AMPS base with a 1" diameter rubber ball with a triple magnetic base adapter. ---Adapter contains 3 rare earth magnets that hold firm to ferrous metals ---RAM ball and socket system - easily adjust to your best viewing angle ---Constructed of high strength composite and powder coated marine grade aluminum ---Genuine RAM Mount: Part # RAM-B-339-A-237U ---Manufacturer's lifetime warranty ---Made in the USA.