Open aluminum rings for canaries 3 mm

Aluminum rings with bright colors for the identification of birds. Being open can be removed and replaced easily, since it is not necessary to go through his foot, and no matter what the age of the bird. Dimensions 3 mm ᴓ.

Allow freedom of movement of pájaro.Se used to study different aspects of the life of birds belonging to a population or to identify batches of birds and identify the bird with his bloodline. They are numbered from 1 to 20 to keep a record.

Strip 20 units.