Guillemot Special Rings Pack of::100 If you are not a

If you are not a BTO ringing permit holder

5 x 10 mm inside diameter Incoloy (hard) metal rings

Denier 235/2 ply

Denier 210/2 ply

fully revised

Guillemot Special Rings Pack of::100 If you are not a** Please use the drop down menu above to select the quantity of rings that you require** 5 x 10 mm inside diameter Incoloy (hard) metal rings. A specially shaped ring to prevent turning on the leg. Limited quantities of these rings are available free. Applications for these should be made by the start of January to sales@bto. org. This product will only be sold and shipped to appropriately licensed BTO ringing permit holders. C permit holders: please