These are closed bands.
Closed bands are designed for chick as the chicks’ paws are soft.
It is suggest to be used on the chicks within 15days after birth.
The rings printing doesn't support custom-to-made,
The rings has been printed with letter and digits, such as "N5234",
the letter and the digits are not sequential but rando
m,
each print on the ring is different from another.
Tip: The color of our ring is shipped randomly, please do not buy if you mind