All the measuremens are in inches, unless otherwise stated. In case you are unsure about a specific piece or in general, please do not hesitate to contact us. We are eager to help you!

Size	Diameter in Inches	Diameter in centimeters	Circumference in Inches	Circumference in centimeters
2.4	2.25"	5.7 cms	7.1"	18 cms
2.6 (Diameter 60mm)	2.375"	6 cms	7.46"	19 cms
2.8 (Diameter 63.5mm)	2.5"	6.5 cms	7.85"	20 cms
2.10 (Diameter 67mm)	2.625"	6.7 cms	8.25"	21 cms