D2 Rings

** Please use the drop-down menu above to select the quantity of rings that you require**

5.25 mm inside diameter Incoloy (hard) metal rings.

• This product will only be sold and shipped to appropriately licensed BTO ringing-permit holders. 

C-permit holders: please ask for the rings to be issued in your Trainer's name or Ringing Group name and not your own. Please ask your Trainer to email sales@bto.org in order to authorise the order.