Enumeration members
CENTIMETERS
CENTIMETERS: = "centimeters"
FEETS
FEETS: = "feet"
INCHES
INCHES: = "inches"
KILOMETERS
KILOMETERS: = "kilometers"
METERS
METERS: = "meters"
MILES
MILES: = "miles"
MILLIMETERS
MILLIMETERS: = "millimeters"
NAUTICAL_MILES
NAUTICAL_MILES: = "nauticalmiles"
YARDS
YARDS: = "yards"