You can easily distinguish Newborn pets from using our ID collar. There are enough reasons for you to choose our ID collar. (1)There are 12 different bright colors for easy identification in each package. (2)Can also be used for smaller animals such as cats, hamster, bunnies, guinea pigs and more! (3Easy to clean and fast to dry, simply machine wash and these will be good as new! (4)Perfect for breeders, owners, and farmers that want to keep an eye on their pet's health, weight and more! (5)ID Collars are washable and reusable, perfect for long-term use! Package Include: 12 PCS Material: the highest quality soft Nylon Main Color: orange, black, red, green, pink, deep blue, light blue, yellow, purple, beige, gray, deep green Target Audience: Puppies,Cats,and for smaller animals such as hamster, bunnies, guinea pigs and more! Safe Buckle Breakaway safe buckle releases when pressure is applied, it makes our ID collar very safe for puppies, and very convenient for you to open it. Adjustable Size The puppy collars can fit pets whose neck girth is 7.5-10.2 inches. So other small animals whose neck girth is within this size can wear.