If your cat goes outside, you need a collar and ID tag for your pet. If you take your cat traveling with you, you need a collar, ID tag and lead for your cat. You can get the injected ID chips from your veterinarian, but tags are much easier for the person who finds your cat to return it to you.
Collars
City Chic Cat Collar 9 in
Pretty Kitty Designer Cat Collar
Cat Lead Collar Gentle Leader Harness and Bungee Leash