Coastal Pet Metal Buckle Nylon Personalized Dog Collar in BlueOur Coastal Pet Metal Buckle Nylon Personalized Dog Collar is specially processed to prevent fraying and increase the strength. This collar is manufactured from the highest quality nylon to meet rigorous standards and ensure product consistency. Get peace of mind and fun fashion with a personalized collar. Collar has 4 holes for a custom fit on your dog, or room to grow for your puppy. In addition, this collar has a durable metal buckle and metal D-ring for attaching leash and identification tags. Size Recommendations:3/8" width nylon collars are appropriate for puppies, petite dogs and small animals.5/8" width nylon collars are perfect for small and medium dogs.3/4" width nylon collars are best suited for medium or average size dogs.1" width nylon collars are primarily intended for large dogs.