10" -  Bottom Ring 25.40cm  Top Ring 12.70cm  Vertical Height 16.51cm

12" -  Bottom Ring 30.48cm  Top Ring 15.24cm  Vertical Height 19.05cm

14" -  Bottom Ring 35.56cm  Top Ring 17.78cm   Vertical Height 21.59cm

16" -  Bottom Ring 40.64cm Top Ring 20.32cm  Vertical Height 24.13cm

18" -  Bottom Ring 45.72cm  Top Ring 22.86cm  Vertical Height 26.67cm

20" - Bottom Ring 50.80cm  Top Ring 25.40cm  Vertical Height 27.31cm

22" - Bottom Ring 55.88cm  Top Ring 30.48cm  Vertical Height 35.56cm

24" - Bottom Ring 60.96cm  Top Ring 35.56cm  Vertical Height 35.56cm

26" - Bottom Ring 66.04cm  Top Ring 40.64cm  Vertical Height 38.10cm

28" - Bottom Ring 71.12cm   Top Ring 40.64cm  Vertical Height 41.28cm