Techniques are described for enabling authentication andor key agreement between communications network stations and service networks. A mounting bracket attaches to the body and has an arm for cooperating with the flange such that the body may be disposed at varying angles relative to the arm, a first clamp attaching to the arm and a second clamp attaching to the first clamp such that the mounting bracket may be clamped to an item on the floating object. The housing may define an internal cavity and may include a body section having a first port and one or more internal contact tabs and a base section having a valve mount and a second port. The multimedia device turns off the display component according to the control signal indicating that the video output circuit has been connected to the external display device. Here, the polishing pad is made of a plate-shaped thermal shrinking material, and it has a half-cut portion cut to a particular depth from one principal surface. Rotating the outer member about the axis causes the catheter, the guide wire, or both, to rotate and wherein moving the outer member along the axis causes the catheter, the guide wire, or both, to advance or retract relative to a patient’s body.