A polishing, buffing, compounding, and cleaning device incorporating rotary motion. The JFET has a low threshold voltage in the range of 0. Each of the two sides of each tile within the series has a different shape in the pile direction than the other tiles within the series such that the last tile within the series is capable of interfacing with the first tile of the next series. In accordance with a feature of the invention, the pointer movement control actions assist computer users in selecting desired operations or objects while minimizing potential for inadvertent user selections or mistakes.