Replacement Black U Rings for all CB X chastity devices, these U-Rings are compatible with all models and spare parts. A CB X complete kit includes U Ring sizes numbers 1 to 5.
Needing a U-ring larger than the number 1 supplied in your kit? Find our Large and X large sizes here, availablein a 2 pack.
Seven sizes of U Rings are available for CB-X chastity devices.
Large measurement is 53.975mm and Extra large measurement is 57.15mm