These aluminum rings are ideal for marking and monitoring your birds. Made from lightweight yet durable aluminum, they provide safety and comfort for the birds' feet without causing them any discomfort. The diameter of 2.5mm makes them suitable for smaller birds, ensuring a secure fit.

• Dimensions: Diameter 2.5mm
• Material: Aluminum for lightweight construction
• Packaging: 20 pieces
• Perfect for marking small birds

This is a practical choice for those involved in the hobby of birdwatching or for breeders who wish to ensure proper monitoring of their birds.