Twist and Tilt pivot base Made of die cast marine grade aluminum, durability won't be a concern The patented rubber ball dampens shock and vibration helping to maintain the performance of the mounted device Simple to use and install, this great little product is compatible with numerous 1 ball mount systems Designed to be compact and discrete, the Twist and Turn won't take up a lot of space but will provide a world of mounting possibilities The Twist and Tilt Mount includes the following male threaded screws: M10 x 1.25" x 20mm, M10 x 1.25" x 40mm, M8 x 1.25" x 20mm, M8 x 1.25 x 40mm 1" rubber (B) size ball Display packaged For more information on this product check out this video.