Description The product description 1.Soft and silky nylon wont ruffle the feathers of your furry friends. It gives your pet the freedom to play. Our dog collars are made of quality materials and are strong and durable. Colorfast means that the collar does not fade, so it can always maintain a distinct identification function. Machine washable for long time reuse. 2. Our dog collars in 2 sizes, S -(adjustable from 6.8 -- 10.2 inches,2/5 inches wide), -M -(adjustable from 9.0 -- 12.0 inches,2/5 inches wide), measure your puppy before purchasing (with rope or tape measure), each size is adjustable and easy to operate to meet your growing puppy 3. [Multicolor] A set of collars with 9 different colors is enough to meet your needs and allow you to easily identify your puppies, cute puppies for both boys and girls. 4. [Safety] If your puppy gets stuck in something, the buckle will release automatically under pressure. There is enough resistance in the tripping part, not easy to tripping.