Check the listing for details. RAM-B-202-A-366U RAM Drill-Down Mount with 1/4"-20 Threaded Ca.... Color: Black, Condition: New. Listed at 44.44 USD. RAM Drill-Down Mount with 1/4"-20 Threaded Ca... RAM-B-202-A-366U Genuine RAM Products! The RAM-B-202-A-366U consists of a 2.5 INCHES diameter round base that contain the universal AMPS hole pattern, SHORT double socket arm and 1 INCHES ball, connected to a round plate with 1/4 INCHES -20 camera thread. The male 1/4 INCHES -20 threaded steel stud will connect to any standard female thread found on camcorders, digital cameras and POV cameras. The mount is designed with a RAM 1 INCHES diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles.socket to socket length 1.75 INCHES hole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES 3-Hole 120-Degree: 1.812 INCHES Diameterplate size 2.5 INCHES Diameterball size B Size (1 INCHES )weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lbmaterials Marine-grade aluminumHigh strength compositepackaging type Poly BagWeight 0.36 lb socket to socket length 1.75 INCHES hole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES 3-Hole 120-Degree: 1.812 INCHES Diameter plate size 2.5 INCHES Diameter ball size B Size (1 INCHES ) weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lb materials Marine-grade aluminumHigh strength composite packaging type Poly Bag Weight 0.36 lb