Problems To provide a solid fuel which is usable as a substitute fuel for living trees, petroleum and so on. The pointing device includes a peripheral device control panel having one or more actuators for controlling a peripheral device connected to the computer. The first absolute rotation angle calculation section calculates a first absolute rotation angle as a first estimate of an absolute rotation angle of a steering wheel based on the first and third rotation angles. The flexibility of a manufacturer to use an expanded range of temperature and pressure in CMP processes, combined with a significant reduction in the cost of consumables, provides a significant advantage in the final cost of ownership in the production of multilayer, integrated circuit devices and other products where CMP is utilized in manufacture. The bracket cover is thus reliably prevented from detachment from the bracket body.