White ring with a black two alpha-numeric code, starting letter 'A', or 'E' or 'K'.
note 1 : up to 2014, a total of 30 rings were delivered since 1999.
note 2 :
Red with a white three alpha-numeric code.
note 1 : up to 2014, a total of 100 rings were delivered since 1998.
Yellow ring with a black three alpha-numeric code, starting letter 'C'.
note 1 up to 2014, a total of 30 rings has been delivered since 1996.
White ring with a black 4 alpha, starting letter 'C'.
note 1 : up to 2014, a total of 7 rings delivered since 1998.
note 1 : up to 2014, a total of 80 rings delivered since 2008.
Red ring with white 1 numeric code (on one leg) and metal ring (on other leg).
note 1 : up to 2014, a total of 8 rings delivered since 2011.
Black ring with white one numeric code (on one leg) and metal ring (on other leg).
note 1 : up to 2014, a total of 51 rings delivered since 2013.
Dark-green ring with white 2 alpha code (on one leg) and metal ring (on other leg).
Yellow ring with a black two alpha-numeric code, starting letter 'G' or 'A' or 'C'.
note 1 :
Yellow ring with black 1 numeric code (on one leg) and metal ring (on other leg).
note 1 : up to 2014 total 10 rings delivered since 2010.
note 3 :