8 or 16 piece Puppy ID Collar Kits for Dogs Litter Whelping Breeder Vet Shelter Rescues Now it’s easier than ever to identify puppies in large litters! Packs of eight color coded Puppy ID Collars have removable number rings to increase your identification options. Mix and match colors and numbers to track litters of nine puppies or more. Durable collars have adjustable hook and loop tabs for a secure fit For use with puppies between five and nine weeks of age Sizes are as follows: Toy collars measure 1/4"W and adjust to fit necks from 5" to 8" Regular collars measure 1/2"W and adjust to fit necks from 6" to 12" Large collars measure 1/2"W and adjust to fit necks from 10" to 16" All sizes are available in packs of 8 collars or 16 collars. Additional Details ------------------------------ Product description: 8 or 16 piece Puppy ID Collar Kits for Dogs Litter Whelping Breeder Vet Shelter Rescues Now it’s easier than ever to identify puppies in large litters! Packs of eight color coded Puppy ID Collars have removable number rings to increase your identification options. Mix and match colors and numbers to track litters of nine puppies or more. Durable collars have adjustable hook and loop tabs for a secure fit For use with puppies between five and nine weeks of age Sizes are as follows: Toy collars measure 1/4"W and adjust to fit necks from 5" to 8" Regular collars measure 1/2"W and adjust to fit necks from 6" to 12" Large collars measure 1/2"W and adjust to fit necks from 10" to 16" All sizes are available in packs of 8 collars or 16 collars.