Ring Spec/Colour
As from 2009 the Budgerigar Society have adopted the WBO Ring Specification and Colour Sequence for the 6-year cycle as listed below.
| Minimum internal diameter | 4.20mm |
| Maximum internal diameter | 4.40mm |
| Wall thickness | 0.60 – 0.90 mm |
| Ring height | 3.85 – 4.00 mm |
| Colour | Pantone Code | RAL Code | Year | Year |
| Violet | 249 U | 4008 | 2009 | 2015 |
| Orange | 1505 U | 2003 | 2010 | 2016 |
| Dark Blue | 301 U | 5019 | 2011 | 2017 |
| Red | 1797 U | 3002 | 2012 | 2018 |
| Black | 2U2X | 8005 | 2013 | 2019 |
| Pastel Green | 344 U (closest) | 6019 | 2014 | 2020 |