As used in this chapter, "skateboard" shall mean a toy consisting of an oblong or rectangular board, made of wood, plastic, metal or components thereof, with a pair of small wheels at each end, ridden, as down an incline, usually in a standing position. It may or may not be motorized; "roller skates" shall mean a shoe with a set of wheels attached for skating over a flat surface, or a metal frame with wheels attached that can be fitted to the sole of the shoe; "scooter" shall mean a foot-operated vehicle consisting of a narrow board mounted between two wheels, tandem, with an upright steering handle attached to the front wheel; "two-wheeled motor bikes or bicycles" shall mean all two-wheeled vehicles powered by a motor or foot-operated (see also parking and traffic regulations, chapter 132D-116 WAC). These "toys" shall be commonly referred to as recreational equipment for the purpose of this policy.