DURABLE MATERIAL: Made of high quality durable nylon material, lined with neat stitching and soft padded lining for a comfortable fit and prevent chafing your dog's skin and hair. Perfect Metal Buckle: The quick release metal buckle is strong and durable, easy to put on and take off. The collar closes with a magic sticker and buckle so your dog can't tear it off. With control handle, D-ring for leash and Velcro surface for patch. When you keep your dog on a leash, the handle makes it easy to remove your dog from the collar. Please note the size, the collar is not elastic, please leave no more than 2 fingers space between the collar and the dog's neck, before you place an order, please make sure the collar fits your dog. A variety of size options: (default M size: M-neck circumference 36-43cm), L-neck circumference 43-55cm, XL-neck circumference 51-65cm. Please leave a message if you need other sizes.