Features: Soft padding: Gives extra comfort to your dog,Don't cut your dog's neck,Double thickening nylon fabric make that stable,Extremely Durable. Heavy duty metal buckle: Guarantees safety to even the most energetic and playful dogs,Easy on/off. Highly Reflective: reflective stitching that reflects light and allows your dog to be seen more easily. Velcro: The velcro area on the back of the military dog collar,put a tag with his name on it. Not only for guide dogs, hearing dogs and service dogs, but also for other dogs Handle design for control and it can be fixed by magic belt,make the collar cool and awesome No Sound,Pretty decent and no noise,The collar is silent when the dog runs Ideal for German Shepherd,Labrador Retriever,Australian Shepherd,Boxers, Pit bulls, Pointers ,Puppy,American/English Bulldog,Siberian Alaskan Husky,Doberman,Rottweiler,Belgian Malinois,Hurley Dog etc medium large breeds. This collar great for dog training, patrol,hiking, walking, hunting, camping, working, runing, jumping, traveling, camping,etc. Measurement: Sportswear Sizing Chart(Size/Inch) Width 1.5" M?15inch-18.5inch(Neck Girth) Width 1.5" L?18inch-21.5inch(Neck Girth) Width 1.5" XL?21inch-24.5inch(Neck Girth) M velcro loop area length about 8 inch L velcro loop area length about 10 inch XL velcro loop area length about 12 inch Package includes: 1* Dog Collar * Please allow 1cm measurement error due to the manual measurement. Double Check of the Measurement Can Reduce the Probability of Receiving Unsuitable Item or Return, Your Shopping Experience is Our First Concern, Please Compare The Detail Sizes With Yours Before You Buy.