Combination of :
* two c-rings (on left tarsus).
* two c-rings (on right tarsus).
* one yellow flag (on either right or left tarsus above, below or between colour rings OR on either right or left tibia).
note 1 : used colours are : yellow, black, red, dark-green and pale-blue.
Combination of c-rings :
- nothing or two c-rings (on left tibia).
- nothing or c-ring over metal or 2 c-rings (on left tarsus).
- nothing or c-ring over metal (on right tibia).
- nothing or c-ring over metal or 2 c-rings (on right tarsus).