Warranty: Manufacturer's, RAM Mounts (National Products Inc.), Limited Life Time Warranty.
Material: Marine grade aluminum with rubber ball.
Ball Size: 1.0 inch B Ball Size / Max. Weight 5 lbs. Connects to RAM-B-201 series arms.
Description: 1 inch diameter rubber ball with M10 x 1.5 pitch. Threaded hole must have the following dimensions for this product to fit: M10 x 1.5 pitch.