15 Pieces Puppy Collars, Puppy and Kitten Identification Collars 15 Different Colors - Our puppy collars come in 15 different colors. The upgraded version of 15 colors puppy collars can provide you with a great solution to easily identify your puppy. Softer Material - Nylon and polyester, double layer of soft fluff, will not hurt the puppy's neck, soft fabric double layer face, provide more gentle care for the puppy's delicate skin. Package Contents - 15 Pieces Puppy ID Collars, various colors, sufficient quantity to meet your needs. This pack of 15 pieces of colorful pet collars is designed to help picky breeders identify each newborn puppy or kitten from birth to their permanent home. Warm Suggestions - We recommend waiting until the newborn is at least 5 days old before putting on the collar, and make sure the collar is worn loosely. Please do not over-tighten, your puppy will grow up quickly. Scope - Suitable for small pets 0-8 weeks old, such as puppies, kittens, etc. You can also use our products for other small animals such as rabbits, squirrels, etc.