little Flow ring

size3.5 14.4mm, size4.0 14.8mm, size4.5 15.2mm, size5.0 15.6mm, size5.5 16.0mm, size6.0 16.4mm, size6.5 16.9mm, size7.0 17.3mm, size7.5 17.7mm, size8.0 18.2mm, size8.5 18.6mm, size9.0 19.0mm