A golf club having a club head with a striking plate having a thickness in the range of 0. There are provided a slot 2 disposed in the side surface of a conductive cubic 1 and a power supply conductor 5 arranged in the slot so as to intersect the slot. In the preferred embodiment, the parameters of these graphical objects can actually be defined in terms of variables and specifically functions or expressions including those variables and then the values of the variables controlled in real-time by the user. At least one of the first and second pluralities of flame-resistant fibers comprises partially oxidized PAN fibers. The XML information contains information to retrieve content, rather than the content itself, which allows the communication to take place over a small bandwidth connection.