SIZE CHART: M: suitable for collar 36-48cm, width 3.8cm, rope length, for weight 14-22.5kg L:suitable for collar 42-54cm, width 3.8cm, rope length, for weight 22.5-32.5kg XL:suitable for collar 50-60cm, width 3.8cm, rope length, for weight 32.5-45kg Durable Material. This heavy duty dog collar is made of high quality and durable 1050D nylon material with neat stitching and soft padded lining to prevent chafing for your dog's skin and hair with a comfortable fit. Magic sticker and quick release metal buckle double closure with dog collars military. is an adjustable dog collar and heavy duty easy to take on and off. The dog tactical collar actually closes with magic sticker first, then you can lock buckle so there's a double layer of protection so your dog can't rip it off. The Design of the Handle. A control handle can grab your dog from the dog collars, makes it very easy when putting your dog in walking him to your lead.