Check the listing for details. RAM Drill Down Mount w/ Threaded 1/4" - 20 Stud for Camera Camcorder Action Cam. Condition: New, Made in USA. Listed at 34.49 USD. Features: ---Round 2.5" diameter plate with 1" ball and AMPS hole pattern ---Standard size(medium) double socket short arm - overall length: 3.69" ---1" rubber ball connected to a 1/4"-20 camera thread - matches most standard camera and camcorder female threads found on the bottom of the camera ---RAM ball and socket system - easily adjust to your perfect shooting angle ---Constructed of powder coated marine grade aluminum ---Genuine RAM Mount: Part # RAM-B-101-237U ---Manufacturer's lifetime warranty ---Made in the USA Compatible Devices (sample list): ---Contour Cameras ---Drift Cameras ---Gobandit Cameras ---GoPro Cameras ---Sony POV Cameras ---XTC Cameras ---Any camera / camcorder with standard female 1/4"-20 thread.