Size: The Size of the cat collar is 7.5"-12"20-30cm, the collar is adjustable ,which is suitable for most cat wearing."Do not Feed Me" Warning Board". There is a board hangded on the collar,which is writed with " Outdoor Cat Do Not feed I Have A Home".This cat collar is perfect for your outdoor cat wearing.Breakaway Cat Collar To protect your cat from suffocation,our cat collar is designed with quickly release buckle.Only need to gentle pull,the collar can be very easy to be take off.Avoiding your cat from getting hurt while playing.Package includes:There are 3 pack cat collar in the package.(1 x Red , 1 x Blue , 1 x Black).This cat collar set is very suitable those family who has 2 or more cats.