Before buying our large dog collars, please carefully measure the dog’s neck circumference and avoid choosing <br>an inappropriate size. Manual measurement, please allow 1cm measurement error.<br>If you are not satisfied with our tactical dog collar or have any questions, please contact us immediately. <br>Your satisfaction is our top priority, and we will serve you wholeheartedly!<br> Measurement:<br>Sizing Chart(Size/Inch)<br>Width 1.5" M：14-17.5"(Neck Girth)<br>Width 1.5" L：17-20.5"(Neck Girth)<br>Width 1.5" XL：20-23"(Neck Girth)<br> Features:<br>Strong and Sturdy<br> Easily adjustable<br>Easy on/off<br>Won't hurt the dog's neck<br>D-RING handle design<br>No noise, the tactical dog collar is silent when the dog runs<br>Large dog collar can be used for dog training, patrols, hiking, walking, running and hunting. <br>Suitable for medium and large dogs, such as: German Shepherd, Border Collie, Rottweiler, <br>Great Dane, Doberman, Golden Retriever, Husky, Labrador, Alaskan Malamute.<br>Package includes:<br>1* Tactical dog collar<br>1* Velcro<br>