The Matthews Infinity Arm Kit lets you modify your camera setup. With the arm, you can mount different accessories such as microphones, on-camera monitors, and more on the rig. It has ball sockets at both ends. The two identical sections have a 60-section radial rosette in the center. This Matthews arm can hold equipment weighing up to 15 lb in a horizontal position and up to 32 lb when the sections are set at angles up to 90°. The rosette mechanism can be adjusted using the knurled dial. As for the construction, the arm is made of aircraft grade aluminum and has an anodized, nickel phosphorus finish. The arm comes with a soft case and two accessory tips.