The RAP-B-379U-252025 consists of a 1" / 25 mm diameter rubber ball connected to a 1/4"-20 x. 25" male threaded post. The male thread matches most standard camera & camcorder female threads found on the bottom of these devices. Features RAM® Tough-Ball™ features a 1/4"-20 x. 25" male threaded post for connection to a variety of devices Included B size 1" / 25 mm RAM® rubber balls allows for connection to any B size RAM® double socket arm, ball & socket technology allows for near-infinite adjustability made from high-strength composites with stainless steel thread post for durability & reliability in the most demanding environments
Dimensions Thread pitch 1/4"-20 x. 25" B size Ball 1" / 25 mm Weight capacity Standard use: 2 lbs / 900 gr. Heavy-duty use: 1 lb / 450 gr.