Designed with a RAM 1" diameter patented rubber ball-and-socket system connected to a 1/4", 20 thread camera head, this universal camera mount attaches to windshield for a safe, easy way to view your camera. High-quality powder-coated Marine grade aluminum construction ensures safety, security, and accessibility. Dampens shock and vibration to extend the life of your camera. Twist-lock suction cup mount consists of a 3.25" suction cup locking base and universal camera base. Adjustment points at both ends of the double socket arm allow for almost infinite adjustment and perfect viewing angles. Male thread matches most standard camera and camcorder female threads found on the bottom of the camera. 1" rubber ball, "B" size.