EZ Clip Snap 5/16" Bands  (Size 5) for Pigeon size birds - Set of 50  (EZ5)
EZ Clip Snap Plastic Bands (set of 50) come in a variety of colors and are 5/16" (size 5) which fits most pigeons. The do not pull apart but easy to slide open by hand. All 50 will be one color. No numbers ore printed on the bands, however, it would be easy to number them with a permanent marker.