The inventions herein relate to novel games of chance and apparatus and methods for their play. Thereby, deflection of the vehicle body can be effectively suppressed during braking. The LO signals leak to each receiver chain and create an undesirable DC offset voltage. An outer layer is provided having openings therein. The invention provides a very compact calender construction by way of having the pairs of rolls staggered in regard to the vertical plane so as to locate the rolls at different height levels. 3 m, is capable of improving transmission characteristics of the whole optical transmission line and allowing the dispersion to be compensated for efficiently and the size thereof to become smaller, and has a structure for improving the total dispersion slope of the optical transmission line while in a state fully compensating for the dispersion of the single-mode optical fiber.