A medical probe includes an elongate member having a proximal end and a distal end, an ablative element mounted to the distal end of the elongate member, and a cage assembly mounted to the distal end of the elongate member, the cage assembly at least partially covers the ablative element. The magnet and the pad face are structured for cooperatively supporting magnetic retention of a predetermined class of items on the magnetic fastener pad. All four damping elements are connected on the side turned away from the device to a console. The sand-collecting means can be compact. By the application of this invention, a very wide range of very different and independent toy systems can be designed that freely inter-connect. Another aspect of the present invention provides the capability to accurately point to a satellite among a plurality of satellites by using a carrier identifier to uniquely identify the satellite that is assigned to the user terminal.